I haven’t had any problems going where I want to go. But, you might want to go somewhere different.
F450s have 4.30 gears by default which will hurt your MPG compared to a F350. 19.5s can’t be aired down due to the type of beads they have. I bought a F450 because I wanted the tougher tires, better brakes, and better turning radius of the F450 and to future proof if I ever wanted a large fifth wheel.
It sounds like from your description, you’d be better off with a F350 DRW. You have much more options for tires with 17s, and like I said, you can air them down if needed.
