Air Conditioning

Thanks guys for the great posts..... I haven't posted in while, but I have a quick question. I have a 76 targa that I call Frankenstein because of its conversion to a 91 convertible. Everything was great until I moved to Miami last month from DC - NO air conditioning. Could anyone inform me of the cheapest way to install A/C back in the car? I need 1)compressor and its harness 2)dryer 3) condensor etc. Thanks in advance