Looking at buying a new truck for a camper, first time

At the very least get the F350. I went from an F250 with 2496 lbs of payload to my current F350 which has 4226 lbs of payload. I don't see any ride difference between the two. We have a Northern Lite 8.11 and fully loaded wet it is between 3500-3700 lbs. I am within all of my weight specs on this camper but I do know the campers with a slide are going to be a fair amount heavier. Add your boat to it and in my opinion you are definitely pushing dually territory.