I had a custom made module for my acoustic / midi Piermaria accordion .
it was originally a Yamaha PSR3000 arranger keyboard .
The speakers were also removed making it slightly shorter and lighter , all keys removed .
it fits neatly into a specially made flight case with my musictech midi receiver and also my receiver for my Sennheiser radio head band mic ..

Arriving at my gig I place the module on a stand , remove the lid , plug into speaker leads , and the mains plug !! all set up and ready to gig !!

I wish I had done this many years ago !!…………