So if your taking both your side x side and PA why not just load the PA on the side x side then load it on the trailer? That way your not lifting the PA up 8 feet. Then when you get to base camp unload the side x side and drop the PA or throw it in the trailer. I'm in the same boat (pun intended)
I tow this...
When I do this...
I can't throw the PA on the truck rack because that's where my roof top tent goes, I'd have to unload the PA everytime I wanted to go to bed. It's too long to fit in the bed of the truck. My only real option is to mount it on the truck that's being towed, like you'd do on your side x side.