I looked at a complete set up from a Subaru at a swap meet this fall. It was a factory option kit, had all the pieces a mechanic would have needed to add a/c. It looked like all a fellow would had to done was build a small box around the evaporator and add some air ducts. It was very small and compact. I passed on it since the fittings were not the standard type. It had all the hoses and even the compressor, but the belt was serpentine and the hoses were short and made for a specific car. He was asking only $200, but I just couldn't see that I would use anything but the evaporator.
Look at how you would adapt the fittings, once you over come that, the rest will work no problem. Adding freon would be the next thing, it would be trial and error getting the correct amount, but a good a/c man could figure that out.
Head to the import yard, I would bet you can find a wide range is styles and sizes for cheap, and the older late 80's still had a/c as a option so you should be able to just take one out of the dash with all the heater attached to it.
Joe
