I'm having a hard time comprehending what I should upgrade toq

I have a 2014 DCSB Off-Road. I have a camper shell and a custom birch drawer system in the bed. Here is an album of my truck from this last summer for reference.
I go offroading/trail riding but I don't go rock crawling or anything too crazy.

I want to lift my trick 2"-3"

I have no clue what kind of package will fit my needs best. When i'm not on the road I don't have my drawers filled and don't ride around with much on my roof rack but when i'm roadtripping I have my drawers filled, an 8 foot yakima box and about 10 gallons of water in the rear end. I'm also getting a rear bumper with fullspare mounted swingout.

My uneducated idea is to get a spring and strut assembly to lift my front end 3" and a firestone airbag system to adjust rear end when packing for the road.

Will the airbags be enough? Will there be any issue with some medium level trails?

Any suggestions would be great. I want it to ride smooth, I only road trip about 1/3 of the year so I need it to be city practical as well.