These are the one I bought, to handle additional weight from the ladder. They have also stock weight ones.
Amazon.com: Qty (2) Fits 4Runner 2010 To 2021 Liftgate Lift Supports Models with Added Lifting Pressure for Ladder : Automotive
This will require seat jackers (extra $100) plus you need to route all the wiring to the battery, plus need to jeep the door open for the air hose.
I prefer the under the hood mount.