My stand-offs have arrived, and also the wrong screws (wanted M3, but seem to have ordered M2 for no discernable reason).  To pass the time, I ordered the pedalboard reed switches and MIDI interface.  That’s another £115.

I have a bit more free time next week, so I do hope I will be able to spend some of it on the project.  I want to get cracking with the piston interface, but I need to get the MIDI modules secured first.