If anyone is Atlanta area and wants me look in to it I can. I am coming out with a stand alone poptopper in fabric and hardside and I believe my fabric close cell foam with radient barrier and 2 sides of weathermax would work for you guys as well. I own an automotive upholstery and restorations business and am well versed with materials.
There was a thread a couple years ago... I even tried to track down the actual maker of the tent portion and never did get anywhere :-( That being said, I had moved towards the "van life" so I will be selling my two FlipPac's shortly