Technology PC: Help Needed

So my Gateway DX4850 that I'd found in an abandoned tailor in the middle of a woods has finally taken a dump. It overheats, glitches out by spewing random text, becomes unresponsive, and takes on a mind of its own. And after having the thing since 2008 I'm surprised that the prehistoric device still turns on. And I'll answer the question most people are probably asking: No. It never ran Minecraft at 30fps. Lower your standards to about 10-20fps.

Anyhow I don't feel like investing in fixing an outdated freebee PC. So I'm going to try and build a POOR man's PC. I currently have a few college geeks that are willing to help me out but I'll ask here for a few recommendations that I could swing by them. I'm looking to build something that can primarily be used to edit videos, run programs such as solidworks, and a side bonus would be games. Being expandable/upgradable is a necessity since I'll be pouring fat stacks of pennies into it once I graduate. I'll note that I'm custom building the case out of rustic steel, bolts, nuts, machine glass and a few sprinkles of overkill that'll tickle my fancy and squash any unfortunate people that may live in the floor below. So I won't need that added to the list of things I'll need.

 

I'm thinking my budget's going to be limited to about $1,000 witch I know is really squeezing the sponge. I'm not really particular on games since playing them's the last of my worry but if it were possible I'd like to get into the norms such as PUBG, Rocket League, and so on. Playing them at 4K wouldn't be necessary. The nail I'm really going to try hitting is editing and 3D modeling for work and spare time purposes. As for building the case I've got my hands on some fancy tools and machinery and I'll be modeling it off of my bud's beefy tower. I know the risks of building one and I'm willing to put in the extra time to make sure it reaches requirements. It'll cost extra but surely raise some eyebrows once it's finished.

 

I've gone through the list you'd made and every component appears to be promising in terms of performance. Or at least from what my lack of experience can tell. I'll run this by my buddies this weekend and see if they have anything else to add that my untrained eye may not notice. Huge thanks for your help. I'll tack on more ram and upgrade the SDD if the future calls for it but compared to my current setup of an Intel i3 530 cpu, 6 GB of DDR3 RAM, and the lack of a SSD and an external graphics card I'm sure it'll do me fine for quite a while.

 

I'll extend the RAM if needed (possibly once iphone x hypes down and Christmas ends). And from what people are saying the 6 cores of the Ryzen 1600x hold up surprisingly well against the i5s. In many cases better.

 

*Continues slapping people who say "I need a new phone" in the face until the price drops back to normal