I happened across some really great pictures of a W126 rear window replacement. It appears that the pictures were taken by a German professional photographer. There are about 75 professional looking pictures out of about 184 in the album at this link:
http://schloerb.smugmug.com/gallery/5283121_5bQoe#321926677_9vR3j
While most of the web page linked is in German, it is not too difficult to navigate; similar to Photobucket.