Looking to buy a fifth wheel hitch assembly for a F-350 1 ton Super Duty long bed. Camper will possibly be a Cardinal 29' approximately 12000 lbs. What will work and what is the best hitch out there. Also this used camper we are looking at had an electircal surge of 220 that blew the converter which was replaced and the battery?? Could there be other electrical damage? Hyd slides and the unit has a 4000 kw Onan.