I would check anything that can be sun damaged. Sounds like you have the roof covered. Slide seals, window caulking/functionality, tires, spare, clip holders for cubby doors, etc. Good luck and enjoy your new rig!
Scott and Liz - Southern NM
2012 Wildcat Sterling 32RL - w/level up (best option ever)
2007 Chevy 2500HD 4dr short bed Duramax w/allison
Reese Fifth Airborne air ride king pin coupler with Sidewinder