I've recently come into posession of a VAXstation 3520.

A search of list archives shows that a few years ago this particular
machine wasn't supported due to a lack of understanding of the m-bus.

Is this still the case, has anybody done any work on it since, is there a
lack of documentation, and is there anything that can (relatively
trivially) be done to help towards supporting this machine?

I haven't really played with it yet - I've yet to figure out how to get
enough of the case off to plug in the power and monitor. :)

-- 
Gillette - the best a man can forget