Update. A windows XP build is back on the menu.
In doing research for my next gaming PC, I learned my current gaming PC is running a 4690k. ie. Haswell. It's a great CPU that has only now started to struggle. If it can run Resident Evil 2 Remake at high settings, it should run anything from the XP era no problem. And despite claims that Haswell support is spotty due to lack of drivers or instructions, it seems to work for what matters.
Worst case scenario, I can combine it with that XP machine in storage that refuses to post.