Assuming the previous owner didn't tamper with the order of the book, the sheet should be located under the miscellaneous tab, which should be at the back. The sheet explains how you should clean all parts of the coach. I believe it's titled something like "Recommended Cleaning Instructions for cleaning the interior and exterior of your new Sunline" or something like that.
I don't go by that. I think the more wax you put on there, the better, especially the fiberglass and logos. I think Sunline said that because it really isn't required with the Krystal Kote, but that way someone would be so sick of trying to rub off the black streaks that three or so years later they'd just trade it in on a shiny new one.
So, if you have time to wax it, go ahead, it won't hurt anything. However, at the very least, wax all the fiberglass (rock guard, entry doors, storage doors), striping, and logos.
2007 T-286SR Cherry/Granola, #6236, original owner, current mileage: 9473.8 (as of 6/18/21)
1997 T-2653 Blue Denim, #5471
1979 12 1/2' MC, Beige & Avocado, #4639
Past Sunlines: '97 T-2653 #5089, '94 T-2251, '86 T-1550, '94 T-2363, '98 T-270SR