Parking Brake

Where to shop for parking brake shoes? I can testify to the fact that when I was a kid, my KB-3 was driven for miles with the parking brake engaged....

These guys here in Dallas, re-shoed my pads and did my E-brake as well on my K-1. I sure you could send it to them if you can't find anything around you.
https://www.kipmotor.com/

Only problem would be, that they would need your drums to match the pads to. They like to match them together in the process.