I wanna hear from you! Newbie Needs some Guidance

Don’t disagree on a dually for full time with a larger camper. That’s ideal and if getting the truck first, most campers won’t be too much for it.
But read up a bit. You need to be more specific. 8-11’ = 3200-6000lbs. Depends what you’re looking at for campers.
Btw I agree with donno above if you’re thinking 11’ double slide 3 ton camper, in theory. But too much of a tank to drive around a 5500 when empty.