Thank you very much. I'll get on it. What I've learned so far:

1. I now know what a cone nut is, and why I now need a cone wrench.
2. On these old bikes, the bearings don't come in disposable cartridges.
3. A seized-up expander bolt in a steering head is common and can be broken free by a single sharp tap with a hammer to the top bolt;
4. New front derailleurs rout the cable in from the top. Old ones, from the bottom. The difference matters.

And so on. And of course there is that line from the old Honda CL90 motorcycle manual: "Before working on motorcycle, make sure mind is in happy place."

Happy Thanksgiving. Thanks again for all the help here . . .