If you get a class C then you'll be driving that every time you want a loaf of bread and leaving your campground behind. A truck and a Travel Trailer(TT) (have no idea why you'd want a fifth wheel for one person) then you can drive the truck whenever you go for day trips.
Also check out the room in a Class C of modest size with a the same length TT. It's probably too late for RV shows but visit a big RV dealer and just wander around and look in the various types of RVs. A standard gas pickup will haul a TT of moderate size easily no need for a big truck.
Finally RV salesmen lie worse than car dealers, pick what you want and then come here for advice. Just assume every word out of the salesman's mouth is a lie, once you sign the paperwork they don't care what happens to you.
Arctic Fox 25Y Travel Trailer
2018 RAM 2500 6.7L 4WD shortbed
Straightline dual cam hitch
400W Solar with Victron controller
Superbumper