Those things could have a delamination problem, and the fiberglass sides could have separated to the point they cracked. The main cause of delamination is water intrusion, for example from a roof leak into the walls.
The price is right, as long as there's nothing very seriously wrong with it. The engine, transmission, and generator are worth that, if they are in working order.
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.