It’s not as big of issue as you’d imagine, a lot of trucks don’t even sit level when empty.
Your Ram will adjust out the lean anyways. Has a separate ride height sensor on each side of the truck.
Fwiw, my Dodge 2500 with a 4000lb full wall slide camper doesn’t lean much at all. Maybe 5 psi different in the airbags, if I’m measuring it. Usually I just put the same pressure in the bags and roll. I do sometimes or try to at least, offset the camper about 1.5” to the left. But that’s just me thinking about how it should be heavier o that side.