Looking for a quantity of...
Bit3 Computer Corp. Model 464 SBus-Multibus Adaptors.
These use an Sbus card, a Multibus card, and a cable.
They allow the Sun system to communicate with the
Multibus machine and were common about 10 years ago.
(OK, so it's got to be used!;-)

Please let me know if you can help, or maybe know a
dealer in the Multibus environment who can help.
(Bit3 were aquired by SBS Technologies, at some time.)

--
Regards,
Tom Tobin.