https://github.com/arcanebyte/uniplus
The 3Com Ethernet driver looks very similar to the one from the 4.2 BSD distribution.
https://github.com/arcanebyte/uniplus/blob/master/v1.5/sys/i...
So I'll need to see if I can emulate how drivers are linked in and probed.
(We did both V7 and SIII ports to the Lisa)