Why not see if the campground will allow you to place your new rig close to the old for a day while you switch out gear. Seems a reasonable schedule could be worked out with the transporter and the campground. I bet you are excited.
Jake my sidekick (yellow Lab) 10/04 - 05/20
2017 RAM 2500 CC 4X4 Cummins Diesel
2016 Flagstaff 26 FKWS
AF&AM & El Korah Shrine of Idaho