I'm doing a '39 chevy. I have pieced my parts together and it was cheaper for me to do this than buy from airride. Try www.truckin-store.com
goto Air bag parts.
I bought contitech bags 1/2" ports (single) for $69 each. you can also piece together a compressor,tank and solenoids. my total system was under $700.
However, I made my brackets. I am not sure what you need there, but fulltiltstreetrods.com has pieces to help fab up a bracket. Air ride told me they wouldn't sell me the brackets for a Mustang II front end.
Good luck and welcome to the forums