After market A/C for our /6?

Thanks for the info guys. I was worried that I would have to pull all the under dash stuff. Are there any good deals on a Sanden compressor? Can I get one from scrap yard? Charrlie S, I will get with you in a few weeks with some more questions. Can you pm me some prices?
My ride does have an Offy 4bbl intake, unknown 6 to 1 header, and will have a offy valve cover in a few weeks, if that matters. Again, thanks guys.