[jimbo493]

Maybe it would be helpful if you posted a few pictures? Are these just platforms which you have but, say, a compressor, some storage tanks, and a few solenoids?
Or for the electrical a Full FRC layout? aka Main breaker, PDB, Motor controllers, some motors, maybe a sensor or encoder? Personally, I would see how having a power for the pneumatics "trainer" could be helpful, but I think its best to leave electrical as a battery, you probably won't use an entire battery in a day, and it helps students see the limits of the system, ect.