Building PC for Minecraft Server

[boey]

So I have a bunch of spare parts, and I plan on cobbling together a PC dedicated for running a minecraft server. We've been way too fed up with aternos's free 2GB RAM per minecraft server. We pretty much only play modded, with modpacks that are usually huge(e.g. FTB, Crazy Craft, Attack of the B-Team etc.), so 2GB dedicated RAM with like 6 people on the server leads to frequent crashing. We can't even run too far away from each other until the server crashes.

 

Right now this is what parts I have currently(a little overkill, so I'm considering swapping mobo and CPU for my friend's 3570k and h61 for a birthday present or something)

 

PCPartPicker Part List

Type	Item	Price
CPU	Intel Core i5-8400 2.8 GHz 6-Core Processor	Purchased For $0.00
CPU Cooler	Intel E97379-001 CPU Cooler	Purchased For $0.00
Motherboard	MSI B360 GAMING ARCTIC ATX LGA1151 Motherboard	Purchased For $0.00
Memory	Crucial 8 GB (1 x 8 GB) DDR4-2666 Memory	Purchased For $0.00
	Prices include shipping, taxes, rebates, and discounts
	Total	$0.00
	Generated by PCPartPicker 2020-03-05 08:58 EST-0500

 

Planning to get a cheapo case, but don't know which SSD and PSU to get.

 

Right now I'm looking at Kingston A400 120GB SSD and Cooler Master MWE 450W, should those work? This server probably won't be on 24/7, maybe max 16 hours a day

 

I do have a PSU from my Alienware Aurora R7 but it looks sketchy and hasn't been powered on for over a year, don't know if I should use that.

Also have an Alienware Z370 if the B360 i have now happens to not work.