I don't have photos but the 63 had sort of a diamond design on the front of the bezel while the 64 had a horizontal line pattern. They both had round buttons. As mentioned the 65 went to rectangular pushbuttons.
Finding a bezel in like new condition is going to require some real luck... You would probably get results faster and easier buy buying a bezel off Ebay or possibly by posting a wanted ad on here, and then sending it to a vacuum plater like
Vacuum Metalizing & Spray Coating Services | EMI Shielding
Not cheap but a way to get a new looking bezel.......