Plumbing eh? It's a shitty job, but somebody's gotta do it

Actually, you can make good $$ being a plumber, and if you're ever hurting for cash, you can take on side jobs at your own leisure, and get paid under the table.
As for the outdated PC, just save yourself about $600.00 - $1,000.00, and build your own from scratch. I built my server for around $800.00, and then went on ebay, and did a comparison. The same machines, with the same motherboards were selling in the $2200.00 - $2500.00 range. Of course, it's slightly outdated now, but I bet I could easily still get out of it, what I put into it.
Then you take the money you saved, and buy your header, and suspension.