Change OEM Air Suspension to which aftermarket (air) suspension system?

[RedsoX5]

Ok the 2005 4.8is with the funky air suspension system may be too expensive to fix. There are complications I can explain later.

That being said if I want to simply replace the entire OEM system with an aftermarket AIR system with adjustable ride height anyone have any suggestions? HAS ANYONE DONE THIS TO A 4.8is?

Thanks I still haven't really got all the history together but bought this really GORGEOUS truck two weeks ago with a clean exterior and interior (TiAg with Silver/Black alcantara M texture/ sport seats) 120K miles and no issues except the suspension which drops in the front after sitting.

Most parts may have been replaced already I believe but still investigating and WAITING for work history info.

THANKS for any ideas!