Update:
I am going to the dealer tomorrow for pictures of the slide area that has separated. Actually, the only part that separated again was in the back, where it was difficult to get screws into the bottom, so that may be the only area that will need an "extraordinary" fix. I found that my fix for the propane fix is not holding, so I may have a split pipe (or just a poorly done repair). I will update as I try one more time to fix it with Joint sealant.
Finally, I am having some ongoing problems with the factory tires. I replaced both front tires last fall, and am getting a noise, almost like a tread separation (though I can see none). I am hoping for another fifteen thousand or so miles (I currently have 37000), and will get some Michelins, and new wheels, if I can afford them!