[Richard Hendrick] “Thanks Alan. This looks like it puts me on the right track, though trying it once, the picture looks like it might be a bit distorted in the vertical, i.e., the faces appear a bit long. A few questions: Should the sequence setting be NTSC DV (3:2) or NTSC (4:3)? Second, what pixel aspect ratio?”
Sequence setting should match the following image:

If you open a clip from your timeline in the viewer by double-clicking on it, the scale and aspect ratio attributes should match those shown in the following image:

[Richard Hendrick] “3. What should the picture in the Canvass look like – e.g., in relation to any blue or gray borders and to overlays?”
I don’t understand your question.
[Richard Hendrick] “4. What does copying the first clip do without pasting it anywhere?”
It copies the attributes of the source clip, which you can then paste using the “paste attributes” command.
[Richard Hendrick] “5. I have some titles and a stills in the sequence that naturally get distorted; will I be rebuilding them or could I deselect them before pasting attributes?”
You could either deselect them before pasting attributes, or select them afterwards and use the “remove attributes” option.