bagging the rear for a manuel system

[386kustoms]

hey guys i am planing on one day doing a full air ride system in my 70 chevy but can not afford it as of now. im thinking of bagging the rear for now with a manuel system using shrader valves. i found a set of firestone bags and i am going to be welding in my c notch. my question is later in life to turn the system into a full air kit all i would need is compressors and tank correct? im not looking to lay frame i just want a good stance.

aldo soes anyone have pictures of a manuel system in the rear. just so i can get some ideas