I the Air Lift system. It works well but I do make sure to have the remote in range because I mounted the controller and compressor above my spare way in the back. I roll down the window. It totally depends on where you mount the controller as to the reception of the remote.
I also wired the compressor to the hot side of my fog lamps so they have to be on. You can wire it anywhere there is a spot for when the key is on.
I do not have the ability to set the bags separately on my model they share the same hose on a tee. Yes I also plumbed in a standard Schrader valve in the bed next to the trailer plug. It looks great there. I think you would want this backup.
BTW this is my second Air Lift. I installed them both myself. very easy setup. Some of the bag kits are different based on model of vehicle.
Larry, Stephanie Park City, Utah
2017 31SL King, 8K axles, Disc Brakes,17.5 Goodyear H tires,BU Camera,5.5 Onan, Heated HT pads, Two Uniguard Awnings, Slide Toppers, 2000w PSW inverter