I used to work for SystemSoft that made the Card and Socket Services for
that machine. If I remember correctly it had a custom Card & Socket
Services that was specific for that machine. You might get it to work if
you got a generic Intel 365 (I think that it the controller) and played
around with the IRQ's...worst case if you get it wrong you'll get no hot
insertion.
Try calling SystemSoft (508-651-0088) and ask to buy CardSoft for DOS. Try
Phoenix Technologies, they might have something.
-Chandra