I plan to setup actual door frames built into boxed side columns with overhead header beams and very flat base plate joining the columns at the bottom. There's a good chance that I may not have an indoor venue and will need a way of locking it up at the end of the night if I end up doing an outdoor/open air gig. Some type of wire mesh fastened to the top of the walls will also help to keep the haunt a little more secure. Inside the haunt, walls that open like doors would be a great asset in the event of an emergency. Exit signs on these panels could be wired to light up when the emergency lighting goes on. Off while operating. Outer perimeter exit signs will have to be lit during your show.