70 Dart Rally Dash Tach inner bezel ring.

Hi, I am in the process of replacing a non original tach in my 70 Dart Swinger Rally Dash. Looks like previous owner has disposed of the inner bezel that closes the gap between the lens and Tach face. I am not sure what it should look like, but I assume it would be similar to the Speedo and Gauge Cluster. It should have a black wall and made of metal with tabs to match the mounting pegs. If anyone can help me find one or has one for sale? Thanks for looking!