After 3 shops I had to wind up at the dealership for a park brake lever self adjustor reset and a fresh set of GM shoes and drums. Holds firm on the last click on a good hill or a throttle input of 1200 rpm. Good fight, resources thin for the finish.
Freshly painted drums:
Shelving adjacent to galley:
Garage workshop v.1:
Dulled hole saw drilling decks for lowrider skateboards, pushed through and tried to make it work. Make a mess instead. Build is microcosm:
Few flyers whipped up for the cause: