Order of install question

Hey yall

I plan on upgrading the suspension on my 19 DCSB off road down the road. I don't know the final weight of my build and I don't want to buy the whole shebang until I know.

I need advice about before the upgrade.

Not a daily driver, primarily road trip/camping/get stuff done vehicle. 80% on road 20% off.

I have a RRT, rack, DB cover and a couple hundred pounds of gear on it regularly.
I don't store the gear on the truck, lift it off when not in use(voodoo rack w/ hoist).

Questions:
1. Am I going to cause significant damage to the rear of the truck running on stock suspension with 600+ pounds in the bed until we upgrade? (Not concerned about normal wear and tear related to having a loaded rig)

2. Would it be smart to go with an AAL in the mean time? (I'm fine upgrading the leaf pack again with the full suspension upgrade)