[rickj]

Nice job. I especially like the retrofit and use of existing ductwork. Air flow is the key base on my observations of other conversions.

Before you cut larger holes in the bay doors to increase air flow, you might play around with a fan or two forcing air through the existing opening. If that works, it would be a straight forward task to add a couple of pancake syle radiator fans to the inside of the door. Then trigger them from the AC controls via relay.

Richard, thanks for the idea; I'll have to determine if there is enough room between the condenser and the inside of the basement door.