Please remember, I have already found one thing that meets these specs -- the folding bench described upthread that is 6 feet long so it's not impossible. I am just hoping to find something shorter.
The drywall bench is a great idea if I can find one a bit lighter, or MAKE it ligher. And inversion table is a very creative idea! The fold-down bumper mount would alleviate the weight problem.
I am familisr with portable massage tables (and I have one) they are lightweight compared to furniture ;). But not easy to lift or fit into a van.
Thank you so much to everyone who has made practical suggestions so far :).
