new Ford 7.3 gas with 3.55 axle ratio, does it work?

If I bought a new truck this would be the one.
3500 4-wd, dually, 3.73 gears with the 6.6 gas.
I'd put my camper on it and never take it off.

I'd keep my current 2500 so I'd have a normal everyday pickup to drive.

With my current truck and camper I set my cruise at 72 mph.
It spends most of its time in 5th gear except on the hills.