Congrats on your new PUP! I would definitely get the pop up Gizmos to insulate the tops of the bunk ends. When we had a PUP, they were life savers, especially in the brutal FL sun.
Pop Up Gizmos. We also put the silver car dashboard/windshild protectors in the bunkend screened areas to insulate and cut down on light.
We use these under our stabilizer jacks, and also to help level from side-to-side when necessary:
Lynx Levelers. They're lightweight and relatively inexpensive at Wally World. We also have the plastic chocks from Wally World (4 - one in front and back of each tire).
If you want the Cadillac of levelers, get a BAL leveler. Prices vary widely, so Google
BAL Leveler, if you're interested in this option. The BAL will chock and level your camper.
Another good forum for PUP folks is
popupexplorer.com