The ad glass was attached using the two pieces of stainless steel trim with several nuts and bolts that you describe. My ad glass that came with the pump was plastic, not glass. I believe the inserts in the Cash Value, This Sale,ect. were one piece for ewach set with the three inserts that simply pushed into place on the back side of the faceplate. The original face plate trim had a white molded plastic that served as the seal between the door and face plate. I do not think they used this style on the five foot models.