in the document center is literature on sportsman model.
Trillium also made a attempt at selling them as toy haulers after the order from the tobacco company, but back then no one wanted them. Tom thought he had made 1/2 dozen or so but I have seen about 8 of these units over the years. all sportsman models had a plywood supports put in place where normally the closet and cabinets would be, this was to support the roof and sides. they make a good blank slate if you can find a empty oneif you are a do it yourselfer. in the picture you can see the four plywood positions 2 on each side.