to me the "best" upgrade would be overloads for the leaf springs and get rid of the air bags. you can look on line and see different capacity overloads and spring packs for the truck so you can dial in how it will ride with the camper and empty. I have a 2014 and I think the factory overloads are rated for 450lbs each, you can get them in weights all the way up to 2000lbs. this will let the truck ride normal when unloaded but kick the factory suspension in when loaded up.
Some bolt on overloads may work too if you can fit them.
Again, personal experiences vary here.
Yes a bag could fail unexpectedly. I haven’t experienced that, at least with bags that weren’t old and beginning to degrade.
And as said, if you’re not using the truck a lot or at all for daily driving, just beef up the springs for best results. Shouldn’t take a lot with your truck and that camper.
ya, some bolt on ones may, the factory overload springs are bolt on also, but cheaper than most aftermarket are already installed on any F350, and available in several different ratings from the 450 (factory) to 2000lbs and I think there are 3 different ones in-between that like 750, 1000 and 1500, but I would have to look them up again to be positive. they are dirt cheep also which is a bonus, don't change your ride height and when empty ride like the factory truck. if you beef up the main spring pack then you are also changing the ride height in 995 of the time, and todays trucks bed height is getting boarder line extreme as it is.
my problem isn't with the bag its self, I had bags on my f150 back when I bought my first larger trailer. the biggest issue with bags is they are not used properly. people use them to level their vehicles back to ride height and that unloads the suspension so now you have to bags supporting everything and they increase the sway. if they are used to just take the excess sag out while leaving the overload contacting they tend to work ok, still not the greatest for sway but you can get by
