Should I get airbags

New to forums and just upgraded to a fifth wheel I picked up last weekend. I was trying to decide if I should get airbags to supplement the factory springs. I have a 2015 Dodge Ram 2500 diesel and fifth wheel with a pin weight right at the trucks rating of 2300lbs. The 2 hour trip back home from the dealer it towed amazing and I didn't feel like my headlights were in the air. Very smooth but I was on a good road. When hooked up the rear sags 2.5" at the axle and the front is pretty much the same. The only reason I'm considering airbags is I will sometimes put a 120lb generator in the bed of the truck and I'm right at my payload limit. Also at $350 the airbags are a relativity cheap upgrade. I know these trucks are made to be loaded so if I got airbags I would probably just put just enough pressure to cut the sage down to a 1".

I have a picture. Hopefully I can figure out how to post it.