Huge thank you to Simon for this high quality part. He even helped me through the steps of doing it. I discovered something important, which is that the elongated hole area also cracks. Even with cracks though, it's encased well enough that the pin can still do its job with Simon's replacement part.
Old vs new
Here is a closeup of the damage the pin did. It created a ramp in the pot metal. You can definitely get some years out of reversing the ring, as you can see the other side is undamaged. But it will eventually fail, and taking these things apart is not a fun job.