As you can see, this project needs a LOT more work. However, I learned what NOT to do, which will help on the next attempt.
The idea is to protect the instrument modules, combine the instruments into one unit, and design a case that doesn't have to be removed while in use.
It will have the instruments back-to-back. A clear vinyl pocket will hold a sheet of Lexan to protect the module on each side. I also want each side to be color coded....makes it easy to know which instrument is which.