2+2 quarter window seal

I have been reading the forum for some time and find it very useful source of information for helping my son with his 78 2+2. However I have not been able to find anything on the 2+2 quarter windows so I thought I would ask. I have checked most of the vendors out there, BD, Vintage, Courtesy, and a host of Ebay sellers and I cannot find the seal that goes on the leading edge (by the door) for the 2+2. It appears to run the height of the frame, with cutouts for the metal tabs that appear to be the hinges to open the window, and extend across the top approximately 2 inches where the weatherstrip similar to the door sash weatherstripping begins. Any help would be much appreciated.