Somewhere out there, there's fairly complete
info on the Lisa hardware. It should include
details, if not on the keyboard itself, on the
interface to the keyboard. From that, you might
be able to modify a spare Mac keyboard to work
until you can find a Lisa replacement.
The last time I checked with them, you could still get a new
Lisa keyboard, with the notecards, for about $50 from Sun
Remarketing. Might seem a bit pricey to some people, but there
aren't a whole lot of other choices for this part.
Jeff
--
Collector of Classic Microcomputers and Video Game Systems:
Home of the TRS-80 Model 2000 FAQ File
http://www.geocities.com/siliconvalley/lakes/6757