Reliable brake work in Calgary

I'm looking for someone I can trust with my 1974 Dart. The rear passenger brake is leaking and for the life of me, I can't get the drum off to fix it. I've spent many hours spraying it with releaseall and whacking it with a hammer. It's not budging. I don't want to buy another tool to pull it off so I was going to take it to a brake shop, but I don't trust just anyone. Has anyone got a trusted shop here in Calgary they would share with me?