IMHO: A Class C 25' or less simply does not need auto levelers. Spend $30 and buy a set of yellow Leggo blocks and a couple of bubble levels to place at the rear corner of your coach. I have yet to ever need to use more than two per wheel. Mosts CG sites require no leveling whatsoever. Give it a try and you might find that you were searching for a solution for which there was no known problem {The government does this a lot}. :B
If you change your mind and just "Have" to have levelers installed you will still be using the Leggo's under your new $4,000 levelers but can kiss several hundred pounds of payload (along with your money), good bye.
Most auto leveling systems besides being heavy and expensive are about as problematic as slides... sooner or later they will give you trouble.
As always.... Opinions and YMMV.
:C
