I could well have an old PC with installed // port in my collection of antiques. If so, and it meets other hardware requirements, you can have it for the price of shipping — free if you are willing and able to collect.
Contact me by email if you’re interested.
(Added in edit: A very quick rummage in the loft unearthed a Pentium-II system. Unfortunately it doesn’t have a PSU but I may be able to find one. Alternatively, perhaps just the motherboard may be sufficient and you could use the rest of your old kit to complete the system.
BTW, how did your old system die? It may well be reparable with components from my parts collection.)