Rog, if you feel like doing a bit of searching in the local yards, some of the 70's Lincoln Marks and Continental had some really nice rectangular ducts about that size. Seems last set I had were out of like a '75 or someplace in there. I agree that the Vintage Air ones are waaaaaay overpriced, the one's I got out of a salvage yard were metal, directional with on/off control and cost me about $10.00 for 4 of them. The Town Cars have some really nice courtesy lights, too!