Sourcing vinyl top trim

My 73 duster has the 3/4 vinyl top (I've seen it referred to as a 1/2 top as well). The top itself is in good shape, but I am missing the back piece of stainless/chrome trim. The trim around the windows and drip rails are all there, just the back piece is missing. I have found sites that source the clips, but I cannot find the piece itself. Any ideas?
http://imgur.com/CiCqRTO.jpg
Author: admin