[Kube]

I found this task to be a pain in the butt.

I allowed the regulator to lay in the bottom of the door while I fed the glass in through the top. Once within the door I was able to place the glass in its proper horizontal position , lower it a bit to engage the regulator and last but not least, raise the entire 'assembly" and attach it to the door.
There may very well be other ways to do this task but this is what worked the best for me.
Oh, two guys make it a lot easier....