Thanks for input so far, I've gone cross country before, with a 30' bunkhouse and F250. Don't plan on getting large trailer. The current TT works great for the two of us. More wondering can new 1/2 tons comfortably pull cross country. I will plan to keep this truck for a long time. Live on a farm (though I don't farm), but need to haul things around (farm has big trucks to haul big things, so don't need that). To answer a few comments,
Yes, Titan XD intrigues me, since I plan to keep not worried about re-sale so much.
I would not get anything with less than 1500# payload.
Alaska will be when we full retire in a few years, so we plan on a long trip 4-5 weeks.