i haven't completed the full trail, james and i turned back after the winching video, which was basically the second obstacle. i get a lil paranoid on a run when having to recover someone that doesn't have attach points. james had to winch that guy by his front axle...
i think the stock 4dr (2dr as well) rubicon only has one real worry on that kind of trail and that's break-over angles. but good obedience to the spotter and not worrying about rubicon rock rails or skid plate dings and it's feasible. rubicon lockers and e-disco will go a long way in the rocks.
and, when done with upper ajax, we could head back home via box canyon. which if you are new to wheeling in southern AZ i think it's one of the must see/wheel trails. simply gorgeous narrow canyon.