I've been putting this off for a couple of years. Finally got the seal and cut out the window and exposed the rust. It's going to require fabbing up a "T" section to patch in.
The clown that replaced the stainless trim on the body and at the bottom of these fixed rear windows installed the clips with bondo (or maybe it was just REALLY HARD caulk originally installed at the factory) making it impossible to remove the trim without distorting the stainless. I discovered this on removing one of the trim strips on the door and so when i got to removing the fixed window, I broke off the clips from the inside and was able to pry the trim off without distorting it. I will need to replace the 4 clips that hold this trim to the body, but am having a difficult time determining a part number (GCP site>Amazon>220>body) shows the image, but not the intervening pages listing the part names and numbers. If they are unobtainable, does anyone have these, or can tell me if I can modify some other clip to replicate?
I can supply pictures via email, but probably if you understand what I'm talking about, having been here yourself, you probably don't need pictures.

thanks