What are you planning on towing? Some of the suspension modifications you're contemplating might not play well with a trailer with any kind of weight onboard. Suspension and steering geometry in general on a lowered and air-bagged vehicle can get pretty challenging, and when a trailer gets into the mix, problems sort of tend to expand exponentially. Be sure to do your geometry homework before you get very deep into the project.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!