67 chevelle driver side vent window

Does anyone have or know where i can get the complete locking assembly for the driver's side vent window. there is just a small hole in the window right now, so i need the piece that goes through the window which the lock itself attaches to. Or where i can get a complete vent window. Thanks.

OPG, (original parts group), sells them for about 19 dollars each or like 39 for the set.