If you are off roading, you don't want a diesel. Take it from somebody that takes his 4 door, 1 ton, long bed diesel everywhere. Diesels are only good if you are towing heavy , every weekend. They are so front heavy, loud and expensive. Will it do it, absolutely, is it fun, no. Get a 3/4 ton gasser. Load it up with a winch, lockers, and a good set of 4: quick cam, v bar chains and you will be able to drive up anything. I love a topper if you are sleeping in the bed, but would pass on the decked drawers with the topper. It takes up a lot of height and is hard to sit up in then. If not sleeping in the bed, I like a hard sided, folding tonneau cover with home built pullout drawers. I have had soft covers blow off in 80 mph winds.