Questions regarding Twitch streaming

[Blitz22]

So as the title says I have a lot of questions regarding setting up a Twitch stream.Before that, here are my pc specs(haven't purchased the components yet , but will at a later time):-
i7-8700k
rtx 2080
32gb(4*8)trident z ram(3000mhz)
4tb WD blue HDD

500gb WD blue m.2

Evga 750w. G3
Steinberg ur22 mk.2 audio interface
Akg d5 dynamic mic
Logitech c922x
2 x Acer predator xb271hu monitors(144hz,wqhd res)
Philips shp9500 headsets
2*Mackie mr524 studio monitors

What i want to achieve from this setup:- 1.Gameplay on one monitor and stream monitoring on another.
2.Audio input from mic(Akg d5)
3.Game audio+my own voice i.e whatever the viewers will hear on headphones(I believe this is achieved through something known as audio loopback , but I have honestly no idea how this works)
4.Video from the webcam
5.The ability to use my studio monitors for listening to music when not streaming

So my very elementary questions are :- (1)what wires will I need ?
(2)What other components will I need (if any)?
(3)what software other than OBS will I need ?
(4)How will I set everything up ,like what wires go to where ,what settings to be applied etc. ?
Also, please suggest the setting I should use to stream at 720p60fps or 1080p60fps(if possible) in OBS.
Thank you for any and all answers!!

[RaidAU]

You didn't list a PSU so you will need to find one as well.

Secondly, which wire are you referring to? To power the pc and connect external components or internal components

Finally, don't use OBS, look up SLOBS, it is much better. Also to find best setting search up a video on YouTube as it can vary depending on your internet connection and location ect...

[LogicalDrm]

Your upload speed? Thats kinda important when streaming.

 

With audio setup you can go with virtual audio cable's. You setup it so that only game audio+everything you want and mic gets into stream and rest is just for you. This is useful if you don't want Discord or other VOIP in there. On listening side, if you don't want to disconnect cables, you should look at some sort of output switcher. If you would be using integrated audio, then you can use software to select whether to use rear audio or front audio. Streaming software have 2 audio inputs by default. If you need more channels, you need to look at paid solutions.

[Blitz22]

On 2/21/2019 at 11:32 AM, RaidAU said:

You didn't list a PSU so you will need to find one as well.

Secondly, which wire are you referring to? To power the pc and connect external components or internal components

Finally, don't use OBS, look up SLOBS, it is much better. Also to find best setting search up a video on YouTube as it can vary depending on your internet connection and location ect...

Sorry,I completely forgot about the psu,I will be buying the evga 750W g3 .As for the wires,I was asking all the wires required,be it audio cables,power cables etc.I am a complete noob and this is my 1st build.Please help!