I had to Google it to understand and I still don't. Somehow when you reply, they take your information and sell it. You'll notice a lot of FB ads now say they won't respond to the preset question.
I would suggest trying to stay at Idaho Dunes RV vs Sand Hills. Much easier access to the dunes. Bababouy's buddy opened a new brewery up there, so you may consider checking it out. Jackson Hole / Grand Tetons is a nice day trip. If you do go to Jackson take the long way on Hwy 26 through Swan...
You sure that's an SU ? Here's another one in the same price range.
https://str8uptoytrader.com/listing/suspensions-unlimited-mid-engine-ls-powered-pro-ii/