Sounds nice and easy, plus it works well for your particular situation. We simply use the door clips provided by Dometic, but we have very low humidity in our region of the country and only require door to be slightly ajar to prohibit mold growth. Our yard is also slanted where we store our rig but never worry about level unless we are actually running the unit. There were a few times over a decade ago that my wife would forget to install door clips when cleaning out the fridge after extended trips, it would be a few weeks before I would notice and install clips, thankfully no mold ever developed.
