Towing a 39' TT across country? Possible or no?

It seems to me that the OP has a heavy load and is used to having a crowd .
A Mega Cab pickup will easily seat 3 in the front and 4 in the back .
I have been one of the 4 in back .
Not ideal but not intolerable either .
Plus a big trailer needs a 3 /4 ton plus pickup especially with all the people .
7 people at 150 pounds each is 1050 pounds plus their belongings .
I am a gm guy but that MegaCab is a winner for a bigger crowd .