For access and climate protection the best storage cover we have for your 2019 Keystone Premier 30RIPR is the part # 290-52247 which has best protection in all climates, the easiest install, and also has zipper panels along the sides to give you access to side doors as needed.
# 290-74847 does not have zipper panels. view full answer...
I recommend using the Rack'em Lock'em Magnum Wheel Lock # RA-25 with a wheel chock since you said you will be parking on an incline. Check out the Buyers Products # 337WC1467A. The lock will act as a theft deterrent and the chock will prevent the trailer from rolling away.
The # RA-25 wasn't designed to stop the movement of a heavy trailer on a hill. view full answer...