Daniboi

You might get £500.... £450 is more realistic. Break even on a bad day.
 
You can get a pre-built i5-9400f with a gtx 1650 super, 16gb ram, 240gb SSD and 1tb HDD for £560 from AWD. All new parts from an established business. 
 
From some internet random with 2nd hand parts..... Meh, imo someone who is buying a pre-built isn't risking it.

There's only one situation in which you, as a private hobbyist, should buy brand new parts for a build you're going to sell:
Never. You've got your guts, the 6600 and the Z170, and the case if it's in good shape and not terrible. Find used parts and pick your deals, then build around those. It's going to take time, but I promise you that if you go out and buy a bunch of new parts for it, you will lose money.

that sounds like a headache to sort out tho right? wouldnt it be easier to run an web sever that can be controlled remotely?

Oh EZ. So to clarify, you want the door to open at a certain time of day and close at another? if that's the case, I see 2.5 ways to do this. The first 1.5 ways is to use an arduino and a real time clock (RTC) of some kind. There are a bunch of different ones out there, usually they have a little coin cell battery to keep them powered even when the device isn't powered. The 0.5 idea is to use a cheap GPS module to get the precise time from the atomic clocks that orbit our planet. There's no kill like overkill, right? Next, your code will look something like this to actuate a linear actuator or maybe a pneumatic cylinder if you're feeling really spicy. 
Method 2 is very similar to method 1 and 1.5, but you would use an ESP32 or 8266 to get the time from a website, then use the same logic to control an opening device. Using an ESP exposed on an open port would also allow you to open the gate manually from anywhere with an internet connection, but I don't think that's a good idea. Maybe just keep it on the local network.
 
For power, you would really want to hardwire this into something so you don't forget to swap the batteries out or something.

Yeah, no, FireWire isn't what you want, at all.
 
You basically have 2 options here as said by mariushm. Powerline adapters, or run an Ethernet cable outside your house, around to your room and back in.
 
IMO, Power line adapters are flaky, I hear nothing but complaints from people posting about them on the forum since they rely on your home wiring and not everyone knows how good/bad theirs is.
 
I'd run a wire around the house with outdoor rated cable. LMG has an old video on how it's done:
 

So recently my dad has decied to put a crappy wifi extender outside my room so i get wifi up in my room (this wifi extender has an ethernet port which i use to get to my PC). However the latency is so bad and because it only operates on the 2.4hz band whenever someone mircowaves something the signal is pretty much useless for that time, which is proving to be more and more annoying because online lessons mean that i miss important infomation.
 
My solution to this would be firewire however I know only about this because it was briefly mentioned in a class i had when i was at school but wasnt told about how it works, what equiment is required for it to work and nor if it was a benefit or drawback to having my crappy solution right now. I have had a poke around online but cant seem to find anything of any help and i would really appricate some on the matter. I have no idea how firewire works but i know that it has to be on the same circuit as the router but that is as far as my very limmited knowledge on the matter goes.

So recently my dad has decied to put a crappy wifi extender outside my room so i get wifi up in my room (this wifi extender has an ethernet port which i use to get to my PC). However the latency is so bad and because it only operates on the 2.4hz band whenever someone mircowaves something the signal is pretty much useless for that time, which is proving to be more and more annoying because online lessons mean that i miss important infomation.
 
My solution to this would be firewire however I know only about this because it was briefly mentioned in a class i had when i was at school but wasnt told about how it works, what equiment is required for it to work and nor if it was a benefit or drawback to having my crappy solution right now. I have had a poke around online but cant seem to find anything of any help and i would really appricate some on the matter. I have no idea how firewire works but i know that it has to be on the same circuit as the router but that is as far as my very limmited knowledge on the matter goes.

Why not just make button, when pressed it will do this:
string text = ""; if (radiobutton1.Checked == true) { text = radiobutton1.text; } else if (radiobutton2.Checked == true) { text = radiobutton2.text; } // etc. etc... MessageBox.Show(text);  

C# int can also handle negative numbers. It's a signed exclusive integer (if I used the 'exclusive' thing correctly..). The value can range from -n to +n-1. n = max value depending on what version of int you're using (Int32, Int64, etc.)
 
Reading user input into a variable like an sbyte (or even int) is kind of dangerous, because if the user fills in something that is not a number, the program will crash. That is why it is safer to read it into a string, check if that input is correct, then afterwards convert it to an int (or whatever numeric data variable you want to use).
You are using Console.ReadLine() correctly though, I just recommend doing something like this:
isInputGood() is a method that returns a true or a false, depending on if the user input matches your restrictions (must be a number, between -10 and +10). The 'while' creates an endless loop, until some input is sent that matches the restrictions. If anything is given as an input that does match, it will go out of the while loop and to the Int32.Parse. This can handle negative and positive numbers.

Yes, all B450 should support Ryzen 3700x
 
https://www.asus.com/Motherboards/TUF-B450M-PLUS-GAMING/HelpDesk_CPU/

Oh dont worry i am making it with 32gb of ram because its like £30 more for faster speeds and it makes more sense and a nicer cooler just for that looks aesthetics down but thanks so much for you help as a fun fact this is going to be my 18th birthday present for myself

https://uk.pcpartpicker.com/product/tV7p99
this case is better on airflow but if you really like the aesthetics on H500
 
https://uk.pcpartpicker.com/product/rnGxFT/cooler-master-masterbox-q300l-microatx-mini-tower-case-mcb-q300l-kann-s00
this is kinda smaller if you think you like to go into lan party i will reccomend this.

Thanks so much mate, i really love look of that case tho plus i am gunna try and get the fallout verison of that case for an extra £100

PCPartPicker Part List Type Item Price CPU AMD Ryzen 5 3600 3.6 GHz 6-Core Processor £178.79 @ Aria PC CPU Cooler ARCTIC Freezer 13 36.4 CFM CPU Cooler £17.30 @ Amazon UK Thermal Compound Arctic Silver 5 High-Density Polysynthetic Silver 3.5 g Thermal Paste £5.94 @ Aria PC Motherboard MSI B450M GAMING PLUS Micro ATX AM4 Motherboard £76.48 @ Ebuyer Memory Crucial Ballistix Sport LT 16 GB (2 x 8 GB) DDR4-3000 Memory £75.99 @ Amazon UK Storage Intel 660p Series 1.02 TB M.2-2280 NVME Solid State Drive £97.97 @ CCL Computers Storage Toshiba P300 2 TB 3.5" 7200RPM Internal Hard Drive £52.75 @ CCL Computers Video Card Sapphire Radeon RX 5700 8 GB PULSE Video Card £349.99 @ CCL Computers Case NZXT H500 ATX Mid Tower Case £70.54 @ Aria PC Power Supply Corsair Vengeance 650 W 80+ Silver Certified Semi-modular ATX Power Supply £65.99 @ AWD-IT Case Fan Deepcool RF 120 (3 in 1) 56.5 CFM 120 mm Fans £30.46 @ Scan.co.uk Monitor Dell S2417DG 23.8" 2560x1440 165 Hz Monitor £379.95 @ Amazon UK Keyboard Razer Ornata Chroma Wired Gaming Keyboard £78.57 @ Amazon UK Mouse Logitech G502 Proteus Spectrum Wired Optical Mouse £56.60 @ Amazon UK   Prices include shipping, taxes, rebates, and discounts     Total £1537.32   Generated by PCPartPicker 2019-10-13 18:28 BST+0100   seems like a better build. Note you can change the PSU's to a TX550m. i dont think for a gaming PC you need more than a 16gb but if you do need more then change the ram or mobo.

well yeah it would be better for 1080p too, but the problem is if you can find both the combos at the same prices

I'll just leave this here
PCPartPicker Part List Type Item Price CPU AMD Ryzen 5 3600 3.6 GHz 6-Core Processor £180.78 @ Aria PC Motherboard ASRock B450M PRO4 Micro ATX AM4 Motherboard £70.99 @ Amazon UK Memory Crucial Ballistix Sport AT 16 GB (2 x 8 GB) DDR4-3200 Memory £75.59 @ Amazon UK Storage Western Digital Blue 500 GB 2.5" Solid State Drive £57.95 @ Amazon UK Video Card PowerColor Radeon RX 5700 8 GB Video Card £309.98 @ Amazon UK Case Thermaltake Versa H15 MicroATX Mid Tower Case £29.96 @ Amazon UK Power Supply be quiet! System Power 9 500 W 80+ Bronze Certified ATX Power Supply £42.99 @ Amazon UK Monitor AOC G2460FQ 24.0" 1920x1080 144 Hz Monitor £150.97 @ Ebuyer   Prices include shipping, taxes, rebates, and discounts     Total £919.21   Generated by PCPartPicker 2019-10-04 23:18 BST+0100    

like a old dell, hp or something
 
my compaq 6000 mt is one rn