Towing a 39' TT across country? Possible or no?

If the tow vehicle can handle it I don't see a problem just because of the length unless you plan to stay in state parks, national forests, etc. all the time. I tow a 37 ft. TT with a Ram 3500 diesel (see sig) and plan to cross the country later this year. I know I will have to stay in RV parks most of the time but in the western states it is easy to find spots large enough for my rig in state parks etc.