My short answer is probably not. Air bags typically help pick up an overloaded truck to return it to a level (normal ) ride position. There are cheaper ways to do that by better utilizing the overload springs by using longer overload bumpers or other more engineered and expensive solutions.
I think you would be better to spend the money on upgraded shocks and a anti-sway bar. Our last truck was a 2004 Dodge Ram 3500 that we loaded a comparably heavy camper on. I did have airbags but mostly to help control the imbalance of weight due to the full wall slide. The truck did carry the load ok without them.
In any case you should have plenty of stock truck to load it and get it home to further evaluate.
