UPDATE:
Decided to bite the bullet and get the kit that I posted the link to in my first post. A bit pricey, but my AC tech had no problems installing. This unit cools a whole lot better than the old A6 ever did. When I drive it to work, it sits in the sun till 3:00. Temp is near 100. 12 mile drive home thermometer in vent shows around 50 degrees by the time I get home. Also, a lot less drag on engine. I recommend it if anyone wants to upgrade!