Air ride and laying frame

[Rednwhitec20]

I am fairly new to the site but I bought my first truck last year (1971 c20) dropped a mild built 350 in it and now I plan on air ride and laying frame. I am wanting to do it right but on a budget too as I am 16 and have paid for every thing. Now with a dropmember I plan to go with porterbuilt as it seems the best. I know I have to c-notch the rear and buy an air ride system. With all of that being said what price range would I be in?
Thanks