I'm, also, researching the Ride-Rites for my Tundra but didn't see any Class-A's or C's listed on their search page, which is http://riderite.com/vehicle-search
I asked my RV dealer about them and he said he can order so I'm getting a price quote from him. You may want to contact your dealer and ask them.
I've heard people can just install the air bags without the very expensive air compressor system on some vehicles so I'm seeing if that's an option for my Tundra. (I already have an awesome Viair 12-v compressor)