I go up to SL a few times a year having to drive 6hrs so I am in the same boat as you. The big difference for me is I am only on 32s but I can climb any hill here, keep up with the mild built Raptors until the whoops and have never been stuck. My best setup used out there so far is Fox resi adjustable shocks and JKS 3in springs and Swayloc to use as much of the shock travel I can. I have about 5.5-6in of up-travel front and rear. I am really thinking about having the shocks tuned since I use the lowest compression setting of 1 for on road and off road.
This setup is also decent on the highway. I think your wide 35s will limit how good highway is compared to my narrow 32s.
Also LS….that makes it way more fun!