I just finished a panel for my PAiA MIDI2CV in an 1U MOTM format.
I used Mountain thumbswitches for the MIDI channel and program
select. I had to add a set of invertors and pullup resistors
to use these switches. I used a blank spacer between the two
thumbswitches for more space and of course it's backordered.
The photo shows a bit of foam as an interim spacer.
I added a 6 pin MTA connector for power and used the Stooge
jack brackets to mount the pcb.
Photos at:
http://home.earthlink.net/~dabr/davebr/MOTM/DJB-017_MIDI2CVSchaeffer design file in the "DJB designs" folder.
Dave