Old PC that can run Windows XP (Northfield Crescent NG9)

Please can someone help. I don’t usually ask for things on here I prefer to find homes on here for my own no longer wanted bits and bobs.
I’m trying to help someone recover data from an old PC that has irreparably died. There’s a custom bespoke program on the hdd (which is fine) that we need to access. I’ve spoken to the chap that wrote this program some twenty odd years ago and he’s said the only way to retrieve the information without installation media is to stick the hdd in a windows xp PC and manually enter all the registry keys required along with a host of other settings, services settings and file permissions.
So, we need a windows xp pc - which neither of us have. If you have just such an old one - we don’t need a screen, keyboard etc we would be very grateful. It just needs to be able to run xp and have ide ports on the motherboard. Condition does not matter.
Thank you for reading my waffling.