Just get the 10-pak of Lynx Levelers Wally-World $31
Comes with a storage bag. We have used our set for 10 years now and and about 550 nights of camping. Have never needed anything more than the 10-pak to get level.
We have tandem axles and you can set them up in a stepped pattern and get 3 layers or 3" of height on the low side.
+'s light weight, lock together in a stepped pattern, easy to clean, nice storage bag with zipper.
I have also used them under my corner stabilizers to support the stabilizers legs from digging into the ground.