I got the last set of defroster vents many years ago. If I am not mistaken, they used to be on the forum. They had them made with fiberglass, and they were much thicker than the originals. He told me he couldn't make that much money making the vents, so he sold them to an unnamed person and that was pretty much the end of it. I am talking about 2002 or 2003. It was the first purchase I made to get my GT back on the road. I thought $50 was high, I see now what a bargain I got. If anybody remembers this person, please chime in. I am sure there is a left and right mold for these vents sitting somewhere, It's sort of like a treasure hunt, but you would be surprised at the number of people that come here, read articles, and never become members. It's worth a try, maybe they will se this post and recognize what those two molds are.
Bob