Truck / 5th Wheel Combo - Do the numbers add up?

I have a 2015 Chev 2500 with similar numbers to your F250 Mine is a Diesel, but the 7.3 is a very capable motor. My trailer is 32' and weighs a little more per the weights I have on the tags and from scales. I have no problems with that combo. I would prefer a 1 ton just so I can upgrade down the road. You might drive both, I don't think there is much a a difference in how they drive, just what your payload capabilities are. But, aside from that, your comfortably in F250 territory.