I figured about the same on that. I bet if I went with an under-dash kit and didn't try to plum it into the existing defrost/heat systems I could do it pretty easily.
Classic Auto Air called me back today and told me they could get me a kit put together for that car model for $950.
I would just need to buy a belt that was sized for my rig and then take it in to get the lines vacuumed and freon put in. Sounds pretty good. I just need to save up now.