You might check out oak island, they have some pvc laminated wall fabric that might work for you. you can get a 100 x 100 yard roll for around 700-800.00 dollars which will do 75 4 x 8 walls. You could use pvc pipe for the frame which would make teardown and storage nice and or 2x4s, What I am doing for the home haunt.
www.oakislandgroup.com
good luck




