We looked at the Montana 3120. If I recall the GVWR was 16,000. That makes for a 3200 pound pin. With passengers hitch and fuel it made for over 4000 pounds cargo for the truck.
We ended up with a 5th wheel that has a 15000 GVWR and our pin is a little over 3000 pounds and our total is over 5000 pounds with a transfer tank. about 4000 pounds without the tank.
Originally I wanted to trade the truck for a SRW but the numbers didn't work out so we kept the dually.
It probably boils down to whether you feel comfortable going over the stickered GVWR of the truck or not.
