RAM 4500 with 8'6" flat bed for towing 5th Wheel

Currently, I have a Dodge Ram 2500 4x4 diesel with which I pull my 34' Crossroads Cruiser 5th Wheel using a B&W 5th Wheel hitch. I also own a 1950 Dodge 1-Ton dually flat bed for farm use. I'm consi...