For $1000 you could basically build one today. 5950x (16c cpu) is $400, 128gb kit of ddr4 is $250-300, maybe enough budget left for mobo, ssd, psu, case, cooler if you bought used bits (may also need cheapest gpu on Craigslist depending on your needs). All new ~$1200. Aws/gcp prices are nuts compared to on prem, although hetzner and co would be much cheaper.