If you're just asking for some brainstorming ideas, then....
Assuming you snowbird in your sig picture, why don't you just tow the car trailer down with the tractor on it. Assuming your truck can handle the weight and got the horse power for the hills . Thinking your car trailer has electric brakes, so that shouldn't be a problem.
Also assuming you are not solo you can have your traveling companion drive the jeep behind you down south.
One other option depending on how big/heavy duty of a car trailer/truck you got is put both the slide in and tractor on it and pull it that way. Sure you'll look like a true redneck, but it's only one way not a way of life.
