Nate, how much would it cost, how long would it take, and how hard would it be for you to make a single slot full cover gpu block for one of the below cards? (for me) I would prefer an acetal (or similar material) top, not full copper.
BIOSTAR VA5775NHG1 Radeon HD 5770 1GB
ASUS EAH5750 FORMULA/2DI/1GD5/A Radeon HD 5750 1GB
EDIT: What about a true single slot air cooler? Could you do that?