Dallas Hemphill has:
2 HP-9816 systems
2 HP-9121 disk drives
2 keyboards
2 6-pen plotters
1 2225A printer
cables, operating system, software, and lots of manuals, from about 1983.
Somebody should grab these... The 9816 is a small 68000 machine built
into the same case as the monitor. It's about the same age as the Mac
128 I think, but IMHO a much nicer machine. There's no internal mass
stroage device, but you have an HPIB port (which will connect to HP disk
drives like those 9121s (although a double-sided drive is very
useful...) and a serial port. You also have 2 DIO expansion slots.
There's normally either 128K or 256K of RAM on the CPU board. It's not
hard to upgrade it to 1M though (involves replacing 32 RAM chips, adding
a TTL chip and a rrsistor and cutting some links). I can give you details
if you want to do it.
One currious construcitonal feature is that you can remvoe all the PCBs
apart from the PSU by undoing 2 quarter-turn fasteners and just one screw.
-tony