Managed to get an old HP Z400 workstation for the equivalent of $75 USD. Xeon W3520, 6x2gb of ram and I replaced the Quadro FX580 with a GT 730 I had laying
HP Z400 Xeon X5690 Processor Upgrade w/ 4 Memory Slot System Board - YouTube
Upgrading an hp z400 (six slots) - HP Support Community - 7156445