Well, to be legal but not popular here, you could get a 5th wheel toy hauler, cameras with sound, and set it up to run the AC with a gen while going down the road. Even have a remote temp gauge in there. It is legal for a human to ride in a 5th wheel if there is communication to the cab in calif. The Saints could travel in crates, strapped to the floor in the cooled toy area. I've seen that type of setup at shows, not sure they rode back there on the road. Plan B is a class A motor home towing a Jeep Unlimited Rubicon. Guess which plan I like the best.