I have that exact set-up on my car. Well, in a box actually. It was on the car when I bought it and I believe it is original to the car, but I have no proof of this. The car did not have an AC system when I purchased the car in 1979, but did have all the appropriate holes in the firewall, radiator support, and shock tower. No holes on fender apron for remote reservoir.
Sorry, but it's not for sale.