A/C retrofit

I have a 1966 Fury III and I want to retrofit the A/C system, but I don't know where the adapters go. The only places I see where the adapters could fit is the brass cap that is in front of and behind the compressor. Also the pic is a very old pic, so that's why it doesn't look to clean. Also, where can I get a new dryer(that would fit and use xh7 dessicant) and new seals for the system(compressorand all)?

Attached Images
File Type: jpg Engine.jpg (56.4 KB)
Author: Arbiter343GS