Still at the planning stage with this but I thought I'd share incase I have overlooked anything so far. So Koby nanos and micros through megadrum and onto midi units. It may seem a little large but the footprint is no larger than my current setup and once you take out the 2 octaves of ????? (piano, marimba or whatever) its not that big.
As far as the megadrum is concerned I propose to wire 50 mono sockets and the hi hat. Hopefully there should be enough room on the back of a 2u case. Although this is extra work, its going to be easier to set up and take down and a bit more logical than a 2 zone setup. I think this is possible?
The rack, I can customise to suit.