That green JK is running an AEV 3.5" suspension kit, with 35x12.5x17 BFG KM2s. The Mopar winter wheels require a 1.5" wheel spacer to bring the tire out flush with the fender and prevent rubbing at full lock. We run the same setup and love it. We went with the 3.5" lift because we are running a Gobi rack, a 150 lbs Eezi-Awn RTT, plus Goal Zero Solar panels, and a Hi-Lift jack, and that weight will compress your suspension. Honestly I think that the AEV 2.5" suspension provides the perfect look with 35" tires, and they fill the wheel wells nicely. But for serious overland travel, and carrying the extra weight, the 3.5" is the way to go. Running too much weight on the roof with a stock or soft spring rate will cause serious nose dive, which in wet conditions can be very dangerous.
On another note, glad you love the Gobi Rack, the wait time sucks because demand is so high. But it is a high quality rack that will outlast many other racks on the market.