Modifying the air suspension on X5

I just recently bought a mint 2002 X5 ... I have a bit of time and money into it , new timing chain ,starter water pump ,complete tuneup. I'm having the dreaded suspension issues with the stock air system .The last owner had put a ton of money into the suspension. I have a slow leak somewhere , I haven't tracked it down yet. Dash Panel switch never seems to work right . I'm way over it but I do want to keep the air suspension. So my thinking is I'm going to plum in a Air Lift 72000 kit .. it's wireless kit comes with the compressor , lines and air valve bank.. i'm not going to totally gut the old system I'm just going to tap in to it. That set up is for right and left two airbags , but I'm going to use as front and rear . This way I can lower it all the way down lift it up to a desired ride height and make a preset on the control system. it has a couple presents. I'm not sure what's gonna happen with codes and sensors.. i'm sure there is ways around it.. any thoughts ,any help ? Thanks