Thanks for the info..was under impression Thor used azdel now. We have a fun mover 39c for almost 12 years now, replaced the rubber roof ($7500 job) no leaks, got it be for it could get me. Thing I didn't like about the Thor was the rear step up so close to the bed. The sunseeker had more leeway getting in and out of bed at the back, may or may not be an issue for my arthritic wife. I liked the extra barrel chair for the Thor tho, extra place to sit, move around if wet, rainy outside. Alai the main door is further back from the cab over section, likely providing a more solid frame, all things being equal. (In our fun mover the cab over isn't connected to the truck cab, causing issues. Not sure that could be problematic with these shorties but ..)
Hoping to tow 5k lbs or a bit more.