I'm looking at a 94 Bigfoot camper [fiberglass]that appears to be in good shape-except for the floor.The owner says the hot water heater needs fitting replaced-which leads me to suspect this may be the cause of the damage to the floor.Has anybody repaired/replaced a camper floor before?I'm no craftsman but have basic woodworking tools and done some woodworking,and epoxy /fiberglass experiance.