Interesting I came across your post since I was just dealing with my lance 830’s tent this week. I believe they are the same regardless of the camper length. I have been toying with the idea of replacing mine as well so I appreciate the info and will be following your progress. I am in the process of de-mildewing mine and resealing. I think the problem arises from the p..s poor seal lance used on the tent structure. I always put the tent away dry but water leaks in through the seal. This seal is, to quote, “discontinued and obsolete “, originally made by Challenger Door. We have had our 830 for 7 years (it was built in 2008) and the seal was bad within a couple years of purchase. Yeah, I know, should have dealt with this several years ago but it wasn’t that bad and we kept on it. Anyway, the point is, the seal should be replaced. Have you found a replacement seal? Love the layout of the 830, best floor space of any short bed we looked at. The tent has been our only issue.