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 Workstation (Intel Xeon W3520 2.66GHz 4GB 250GB Win 10 Pro) PC | eBay
HP Z400 Gaming Computer PC GeForce GTX 1060 256GB SSD 12GB RAM [Z400] - $825.00 : Professional Multi Monitor Workstations, Graphics Card Experts
HP Z400 Workstation W Intel Xeon W3520 @ 2.67GHz, 500 GB HD, 5 GB RAM, See Desc. | eBay
HP Z400 Workstation CMT Desktop | Xeon-W3520 2.67GHz | 8GB | 500GB | W – Dynamic Computer Surplus
HP Z400 Workstation Product Specifications | HP® Customer Support
HP Z400 Workstation W Intel Xeon W3520 @ 2.67GHz, 500 GB HD, 5 GB RAM, See Desc. | eBay
Amazon.com: Renewed HP Z400 WorkStation Intel Xeon CPU W3520 8Gb RAM 500GB HDD DVI Windows 10 With 30 days Return, 90 Days Exchange : Electronics
HP Z400 Workstation Xeon W3520 2.66GHz Quad Core / 4GB / 320GB / DVD-RW / FX 580 – Garland Computers
Best Buy: HP Refurbished Z400 Desktop Intel Xeon W3520 4GB Memory 1TB Hard Drive Silver Z400 T-0427
HP Z400 Xeon Quad Core Workstation Windows 10 Pro - DISCOUNT ELECTRONICS