Hey Motts, I stopped by this place yesterday with a friend for a little looky. The layout of the campus is pretty random. We weren't able to get into this theatre building, but one door was unlocked which contained random wheelchairs, misc. documents and lots of tepid air and peeling paint. Quite a freeky place if you ask me. I hope you can make it back for more pictures.
Crash Helmet
Location: Belchertown State School Gallery: The Theater