D'oh!!
I just got through writing:
> [...] I have a 40-hole Hi-E rim and
> I'm looking for just the right rear hub.
The rim I thought was 40 holes has a vintage bikeshop price tag on it that says "Lightweight" (that part is true) and "36 holes" (also true) and "$11.00" (that part's not true, I paid more than that for it, NOS 25+ years later). So call off the search for a 40 hole hub, thanks anyway.
Also, I see my long URL for the pedal threads close-up photo got
line-wrapped, so here's a short version:
http://tinyurl.com/