Lmao dude thats simply not happening at that price.
You could get part of the way there with an old Dell server, but you’re probably gonna be paying closer to 2-300 for a decently spec’d one like you’re describing. You’re probably gonna be looking at a 10 year old twin quad core setup with a tdp of like 500W combined for JUST the cores. Your power bill is going to murder your budget, even if you somehow find a magical deal on the box.