I am pushing hard on Bob Baker to reproduce these, and last I heard, progress is being made. So hopefully some will be available soon. These are very hard to find in useable condition and just trying to remove them to install new headliners or fix rear window problems usually results in breaking them due to the brittleness of the old sun aged plastic, even when you know where the clip is that retains them. I gave him some perfect ones to use for reproduction.
You might send Bob Baker a request for some to have someone besides me bringing them up:
abcmoparts.com