If I was going full timing today, I'd buy an older (2007) large diesel pusher motorhome and renovate it.
Or buy a good 5er, update in the interior and pull it with an HDT.
Or do a bus conversion.
I would not full time with a Class C or a gas powered Class A. Nor use a new diesel pickup to pull a large 5er.
If you doubt me about using a diesel pickup, ask the people who own one how long they kept their last one. Very few will say beyond 150K miles. When you are full timing, those miles add up quickly. At 150K, most pickup trucks are worth 1/2 of what they were purchased for. You can buy a good used HDT for what a diesel pickup truck will depreciate in 100-150K. And at that point the HDT will still be a good truck.
Just my $0.02 from watching things from afar.
