Since I can strip/assemble my entire banshee down with a few metric wrenchs, Phillips screwdriver and a flywheel puller (and maybe hammer for bearings)...I not really seeing the benefit.
Here is an idea for you though....People might us your service to "dial in" there bikes or to try new and different performance parts. People are always wondering how brand A is going to perform compare to brand B. If you had all these parts available for people to bolt on to thier bikes (in these bays) and then test them on the dyno, I am sure people would be interested.