I'm looking to buy a new 5th wheel that exceeds my rated tow capacity....my 2011 Ram 2500 with 6.7 Cummins and 3.73 gears has a tow rating of 12,500. The 5er is 13,000 dry with a GVWR of 16,000. Truck's payload is 2350 and pin wt. is 2450. Salesman at RV place and salesman at local Dodge dealer...