Just picked up a '78 motor home based on a MB4 chassis. Looked underneath, and what passes for a frame is kind of an inverted top hat channel. Would this be strong enough for something different, such as a flat deck or cube van. Reason being, there was a leaky roof and two broken roof vents, and stored outside for a couple of years. The ceiling is done, the roof is not right, and the floor is soft in spots. Any ideas? 16' body with over cab bunk (~5 1/2').