I just checked in support for KA86 cpu:s. It works well on one 8600
here with multiple Unibuses, and should work with Massbuses also.
(I haven't any MBA adapters for 8600 to try!). The problem with
ubareset's on 11/780 is inherited in 8600 also, even if it's much
more uncommon. 
There are no console RL02 support yet, but it will probably come.
The device drivers are already written and in 4.4 Lite.

Anyway, if someone does have a VAX 8600, have fun.

-- Ragge