We too had issues with decals on our 2006 Rockwood fifth wheel 8285ss. I contacted Forest River Parts Dept. They were kind enough to send us a picture of our trailer with pictures of the different decals and the part # for each one. They were happy to send to us in Canada. All but 1 on the door side of our fifth wheel needed to be replaced, not just curling some were cracked and large pieces peeled off. also replaced 2 of the "Rockwood" decals and 1 large decal on the slide side. 9 in total.
I also googled vinyl removers and found an excellent product to use. "Vinyl Off" worked absolutely amazing. Peel of the top part of the sticker, spray on the vinyl off and spread over the sticky part that stays on the trailer. I let sit for maybe 4-5 minutes then used a plastic scraper to scrape off.
It was unbelieveable how quick and easy it was to remove the glue with this stuff.
Also had a friend who has had alot of experience putting decals on vehicles come show us how to put the new ones on.
first clean areas with rubbing alcohol, mark with approx. 1" pieces of painters tape where decals need to go back on. Use the wet method (water in a spray bottle with a couple drops of dish soap) to put decals back on, gives lots of time to place decals exactly where they need to go.
Look on You Tube re: "vinyl off" and "replace rv decals". Great instructional videos. I bought 2 bottles of vinyl off on ebay but didn't even use 1 full bottle for 9 decals
Good Luck! It actually is easier than you may think.