Yep, I was going to post pics of both sides of the PCB for somebody here and never got around to it. It's a very simple device.
It has a PC KBD Input and a DE-9 PC Serial Mouse input. So it needs a simple PS-2 Adapter for the KBD, dunno how hard it is to get RS-232 <-> PS-2 Mouse Comms up and running, ISTR a simple adapter for that as well. The ADB Power Button is on the side of the box and it's powered by the ADB bus, IIRC.
As far as FirmWare goes . . . can you even copy protect an old school 32 pin DIP EPROM? :?:
Dunno if the Bus Drivers are still out there in the Valley, but they might remember me from back in the day . . . I could just ask . . .
)