I finally have her running, and running well.
There is only one task left on my punch list, and it is purely cosmetic: the header needs a coat of black high-temp exhaust paint. I’ve purchased the paint, but as the bike needs to be run for an extended period once the paint is applied to bake it on, I’m not in a rush to get this done.
I also decided that replacing the front brake is neither necessary nor desirable. The stock drum works well enough and suits my need for nostalgia.