I don't see any real need for the revolver shackle unless you want a really good ramp score. But I'm locked front and rear so one tire getting a little air is no biggy. I think that the revolver is going to droop the tire down real far but there won't be enough weight on it to get any real good traction. but if you running open diff's then traction is traction.
also the brake lines would probably need to be lengthened again. Also I drive my jeep on the streets as a daily driver so I don't think the shackles would be a good idea. but I'm just rambling my .02 cents