She wants the Heartland Sundance 3400 5th wheel. It's GVWR is 14000 lbs. It's dry weight (I know - doesn't mean a whole lot) is around 10500 lbs. We are eyeing a 3500 SRW S/B. She is wary of the longer/wider vehicle.
Is this a TT or a 5th wheel? If it is a 5th wheel then go with the 3500. I have a Ram 3500 dually and I drive it everyday. Yes it is big and yes I always park in the back of parking lots but I get more exercise that way. When hauling a trailer, especially a 5th wheel having the 3500 dually makes life so much easier. It is also a lot safer. In these forums you will read a lot about people moving from a 2500 to a 3500 but hardly ever see anyone downsizing to a smaller truck unless they are also downsizing their trailer.