Gjac, After explaining my need for adding a set of AB's to a truck shop they ordered a set and installed them. Different brands mount in different ways, your setup and clearance or aftermarket suspension add-ons will determine which brand of AB's will be avl to you.
They installed a set of AirLift bags on my 'C' thinking they would lift me a few inches more than level and they did not, I had them removed bc they did not offer any additional ride difference.
As it was explained to me by the mfg, an AB will lift a sagging rv back to level but will not lift an already loaded level RV too much higher.
I was trying to gain ground clearance for driveway aprons therefore I do not think a set of AB's will work for leveling. My set was only 1/2" of extra height...maybe ! You are not going to feel any difference or will a 1/2" difference affect your fridge, especially side to side leveling. Front to rear leveling is more important for the fridge to operate bc the fins run in that direction and are prone to clog. In my case, the AB's were not worth it.