I was thinking of building a portable stage manager "station". Where the Stage Manager can call/run the show anywhere in the theatre space. It would have racks for video monitors, intercom equipment (headset & master station) A built in desk to put prompt book and other materials. It would have a built in light. Any ideas, design, recommendations you can offer me. I'd like for it to be portable. Maybe some Kind of installed battery unit to run equipment if possible?