We too recently purchased a 25 foot Eddie Bauer with twin AC units. I had a very well built Land Rover LR3, and it was within the tow limits but barely so when adding gear, etc.
So after research, we went with a gasser 2015 F250. I don't drive far enough each day in my work commute to warrant a diesel and honestly, the truck that delivered our Airstream to us from Texas was a Dodge Diesel and it left so much black soot on the front of our AS, that I decided it simply is not as clean a fuel as they say.
I went with BF Goodrich All Terrains (KO2's). Warn Hidden Mount (to keep the factory look) and a Come UP 12K winch (just in case). Rear Diamond Back cover for storing two Honda EU2000 Generators.
The truck is every bit as nice as my wife's big body Range Rover. No regrets here, and it is nice to have something I can haul stuff in if I have a weekend project.