Nick, in all of your internet hunting, have you found any sources for companies that sell coverings that will fit a 2x4, for ex., possibly with a zipper on one side. I can see where a person gets all the OC stuff, but doesn't want to hassle with a nice custom final product, like you and I did...
Our church is actually considering having me put some panels around the sanctuary, as it is pretty reflective. Was trying to find a source for coverings premade for panels...maybe some with custom designs.