You will need a BIG truck for the tow rig and brakes on the boat trailer. PLus make sure the 5th wheel will be able to tow thw boat trailer. And remember you are going to be very long so you will need to route accordingly. When you get to a camp ground(need a CG that has big sights)you will need a place for the boat trailer. You will be able to backup but it will be very difficult. Wind can be a problem towing that long.
LEN