So, I mentioned in another thread that I acquired a junker non-lighted knuckle coupler caboose and a junker #640 AF link coupler hopper, at York. One of the link coupler trucks was needed on my 651 baggage car. I painted the hopper, added decals that I printed, and installed the knuckle coupler trucks from the caboose.
Here are "Before" and "After" pics: