So if you are a guy that is in to tractor pulling and have 2 tractors trailer and a F650 and go to tractor pulls and the whole rig weigh's over the magical 26001lbs in PA and that is were the OP resides you can get get a non commercial A class license and save some money any headaches of a CDL.
Is that rig considered an RV? If it is not I don't see how you figure that a non commercial A will do. Even then tractor pulling is generally considered to be in commerce requiring USDOT number and the whole jive.