I have rebuilt the front ram area and have had work on the rear ram done before I purchased the unit. Here is a link to the 'Restoration 101' posts that were on the slide skirts,
Posts 22 and 23. The
Index might have other information that might be useful as our units are close in years.
I got your PM and will be glad to help if I can....is there a way you could send me a couple of pictures of the rams and area that yu have opened up. As my rear ram was rebuilt by the selling dealer, they used 2x6 material , I don't know what was there before they did the repair. From your PM...not sure you will have to take everything loose or apart unless the damage is more than I think. Pictures are worth a 1000 words.
Welcome to the forum and life with an RV.
workhorse