:h
My previous vehicle was a 2011 Ford F 350 crew cab dually King Ranch.
Found to my dismay that the old glove box sticker said the vehicle was NOT recommended for a truck camper after I had purchased the truck.
So, I hauled one anyway.
The only modifications made to the vehicle were a set of Torklift Upper StableLoads, making the overload springs contact sooner than they would with the factory pads.
Camper all loaded up was about 4500 pounds, so a good load.
No sag or squatting, overloads engaged properly, and we drove all over the western US with the camper on board.
I surely would not worry about any new Ford dually with the pin weights you are contemplating.
Get the fifth wheel prep to go along with the vehicle. I had this in mine, and although I hauled the truck camper the most, it was nice having the factory installed fifth wheel system.
The only thing that would have changed the glove box sticker in mine was if I had gotten the camper package, which in mine would have meant stiffer front springs only. I already had the rest of what the package would have contained.