Broken Window Mounting Bracket

[Mewo]

The little plastic bracket that holds the window to the regulator has snapped. Is it possible to get a replacement or this piece or will I just have to buy a whole window regulator assembly?

Side question: reason I was messing with this was trying to adjust the window pitch as it doesn't quite seat correctly with the door mirror triangle area and causes some pretty bad wind noise. No matter what I tried I couldn't get any pitch adjustment out of the window. A lot of resources online told me to use this regulator mounting area as the "adjustment" but it didn't really seem to have any adjustability other than moving the window up/down a little. Thanks.