No electric lockers, it'll have to be air or mechanical.
With the camper, and the tires/lift, I'd either regear or supercharge. I think you'll notice the weight a lot.
My dad has a lifted 04 tacoma (3.4L) extra cab with 32's arb front bumper with 8k winch, and a custom steel rear bumper, and a 4 wheel camper. We supercharged it and it does pretty well with stock 4.1's. It would be better with something a little deeper, especially on the steeper passes.
But, you made a good choice on the camper. I can't say enough good things about the 4wc's, they are really nice. We were cozy warm in it hunting last year and it got down to -5 or so every night, so it worked very well.
Baby Beast 2- 1999 4Runner SR5
Baby Beast -1987 4Runner SR5-Gone, but not forgotten