F50 Q45 02-06 Air suspension help

[hotlavaflow]

Can anyone point me in the right direction for a moderately priced air suspension set-up? It can be bolt on or something I have to piece together I'm not afraid to put the work in.

I have NO interest in laying frame, scraping etc. I always drive lowered cars and stock height just makes me uncomfortable but, this is the "family" car so I want to drive it my way and have the option to raise it up for my wife.

Help me out. As it is right now I have to change the suspension (it's shot esp. the rears) so I might as well upgrade one time.