Exactly what bedlam said.
My deal was, had the truck already and that part of the equation wasn’t going to change. Bought a single slide AF because that or similar was what I was honed in on and it works just fine. My reaction was somewhere between “too easy” and “oh sht”.
IMO, new long bed srw HD pickup will handle a 990 just fine as long as you realize you need to do a little work to the rear suspension and don’t get sea sick easily! Lol.
Refering to the more pronounced rocking side to side of a srw vs a wider wheelbase. Not bad but not as stable.
I wouldn’t think twice about putting a 990 on a new F350 with a sway bar and some sort of suspension aide, springs, bags, timbrens etc.
All this said, I’m likely a bit more comfortable pushing a vehicle’s limits than a lot of people and I will admit a dually is ideal....for the camper.