hello, I own a 2013 st ram 3500 4x4 long bed crew cab dually and the door sticker says gvwr is 14000 lbs. i loaded my a/f 990 with full water, propane and gas in truck with food and all camping gear, plus 2 bikes on front, minus wife and i, maybe 300lbs and the total weight 13480. the camper sticker says camper weights 3526. i guess i am under weight by 220 lbs, would that be about right, thanks