Installing the wing locker requires exacting work. It does not look like it would take much time to complete, but it does. All of the cuts need to be made very carefully and slowly in order to have the door fit with no gaps. Also the hinge that is supplied with the kit, in my opinion, is too short. I came up with a way of using a piece of scrap hinge that I had to fill the gaps on both sides of the hinge, to make it look good, and provides a means to prevent the hinge pin from coming out as well.