Window mechanisms on Sedan Doors: Which first?

I just pulled glass out of a 62 Savoy. I had to remove the glass before the vent so I had room to get the vent to break free of it's hold. If I was re-assembling it, I think I would install the vent without bolts to leave it movable and then install the glass. That would allow the movement to get the glass in the track prior to bolting the vent into position.