I just wanted to mention that there is a pretty "cool" AC evaporator for sale right now on Ebay. It's a hang-on Mopar Cool Aire unit that would not not need that much cosmetic dressing up, and it's only $80. Wish I needed it.
You guys with the consoles are pretty much out of luck with respect to add-on evaporators, but I thought others might have an interest. And it's not that much of a challenge to gather up the rest of the parts of a system and install them.