Rear Suspension Advice / Help

I have a 2018 Pro with a Leer 100 XR with roof basket and awning and usually 150-200 Lbs in the rear. I will possibly be adding a roof tent and another 100-200 lbs for trips. I do allot of driving on gravel/oil lease roads with long highway commutes in between, with possibility of future teardrop behind.
Looking for options/recommendations to get rid of the sag, level out and improve on/off road ride and still be able to off-road.
I have been researching leaf packs/airbags/Timbren etc.. but i think I'm starting to confuse myself.
Any recommendations would be great
Thanks

 

https://www.headstrongoffroad.com/store/c124/Leaf_Pack_Replacements.html

If you choose Dakar you need heavy.

Other choice not there is Icon RXT leaf pack.

Next choice is to get a custom leaf pack and provide them with the amount of weight you plan to add.