Large Truck Campers: how practical?

Joe wrote:
If the man who has a mammoth on a 550 tells you you can go on trails with it then I would say that is your answer. "In my opinion" The first pic does not match the second pic builds. The first pic looks like a delivery van but the second pic looks like trail riders. Completely different models even if they are the same frame. Also, with all the stories I and others have posted about broken frames on 3500's I would completely stay away from them and go strait to the top with a 5500 class truck. From the pics I have seen like the one you posted "Broken frame" it has seriously made me reconsider my truck camper combo, So much that we are looking at TT's again. I aint getting any younger! I would not be able to fix a broken frame nor could I afford to have it fixed. Good luck in your adventures.
Joe