I am considering buying a 1988 Jayco 30 foot fifth wheel travel trailer. The guy who has it would sell me his fifth wheel hitch but to me it seems very cheap. It just bolts to the bed and to the top of the wheel wells. I would rather have it attached to the frame. I have to put a gooseneck hitch in my truck to pull my equipment trailer so I would just rather have the travel trailer be a gooseneck. The king pin on the trailer is attached to a plate that is bolted to the trailer frame. Why couldn't I remove this and make a hitch that would bolt to the trailer frame and have the tube extend down to the gooseneck ball in the bed? Building this would be no problem but I am just wondering if the travel trailer frame would take the extra leverage that this would place on it.
Another question is, will it be possible to pull this travel trailer with a crossover tool box in the truck? I am thinking that it may hit the front of the trailer.