Your front panel is neat, the whole thing is neat. So,
how about connecting
the front panel to my PDP8/A Omnibus? Does your PDP-8 have an Omnibus at
all or did you invent a completely different bus or no bus at all?
Electrically speaking the front panel is not anything like a PDP-8 front
panel; probably the most practical way to connect it to a PDP-8/A would
be to design a new circuit board and just keep the front panel plastic
that I've made. You can buy the front panel plastic alone if you want to
undertake such a project.
The SBC6120 does have an expansion bus, but it's not OMNIBUS. A SBC6120
to OMNIBUS interface is possible, but it would take a little work. It's
all open source, though, so feel free!
Bob