Amerock A8 cabinet hinge

Hinges to be replaced are on the right in the first two pics.... everything we can find has that "step" as shown in the left sample.
Some of the plastic pieces are cracked on our hinges. We'd like to replace them with an aged bronze finish ( basically black with bronze on the edges OR all black). Cabinets are Merrillat 1989 - we need 51 hinges. Thanks

Did you ever find replacement partss?