What's it going to take to lay one out? Can the stock rear trailing arms be used? How much of a frame notch in the rear? Who sells the best dropped spindles? Any mods to the front suspension or crossmembers? Any pics of air suspension setups on these trucks? Planning to use Firestone 224c or Superlift 13" bags on all 4 corners, an Engine Driven Compressor, 8-gallon tank, 4 SMC valves for Front/Back only and 1/2" DOT line. I'm guessing a 10" frame notch/bridge would be sufficient out back. Any help is appreciated, thanks.