I think it would be hard for anyone here to tell you that "it'll be ok" in regards to that specific delaminating trailer. The rule of thumb is, if there's delamination, there's likely hidden water damage, so proceed at your own risk. Sometimes it pays off, sometimes it doesn't.... Most people will likely walk away from it, or you can ask for a steep discount based on that condition and the unknown condition of what it may be hiding.
In that regards, our used hybrid camper has some delamination on the back left wall, by the outside shower. The delamination was caused by a roof leak that was fixed by Jayco with the previous owner (so new roof, new back wall, but didn't replace the sidewall). In any case, it's been almost 3 years since that repair was made and our delamination has not gotten any worse, and is only visible in some lighting. Our camper is water tight, and we continue to enjoy it. We didn't set out to buy a delaminated trailer, but rolled the dice with it and have no regrets. We were aware of the roof damage and repairs made, but did not see the delamination until we already brought it home for a couple weeks. The dealer was willing to buy it back when we raised concern, but ultimately we decided to keep it. However, all that said, there's no guarantee in your case so you're just rolling the dice too....Good luck!
