Suspension Advice - F350, Truck Camper and Fifth-wheel

my TC weighs 4500. Its on a 2011 F350 4x4 crew cab long bed diesel dually with the camper package. I also tow a 5-7000 pound load horse trailer (weight is related to number of horses on board).

For just the camper I find that upper and lower stable loads give me a perfect ride. I have airbags that only get used for when I am towing the horses to level the ride. For that reason I chose Airlift Loadlifter 5000 airbags as they can be run at zero psi when not needed.