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 around. I will add an SSD. : r/pcmasterrace
HP Z400 Workstation Memory/RAM & SSD Upgrades | Kingston
Upgrading an hp z400 (six slots) - HP Support Community - 7156445
HP Z400 Xeon X5690 Processor Upgrade w/ 4 Memory Slot System Board - YouTube
HP Z400 TWR Xeon 8/240 SSD+1TB HDD - Grado B | ExNovo Computer S.r.l
HP Z400 WorkStation Computer PC Hex 6-Core Xeon - 256GB SSD - Windows 10 Pro | eBay
A-Tech 4GB for HP HP Z400 Workstation (6 DIMM Slots) (1 x 4GB) PC3-12800 (DDR3-1600) ECC Unbuffered UDIMM 240-Pin 1Rx8 1.35V Server Memory RAM at Amazon.com
Unablt to boot from USB on Z400 - HP Support Community - 6738773