So having mostly sourced the parts the day before, this day was mostly about putting them on.  The best bet I could find for the front centering mount didn’t fit – they key was too big for my headset and everything was rather bent out of shape.   Spent a good chunk of time twisting it into something reasonably straight and making the adjustment fit.

Rear Brakes:

Rear Derailleur:

So I now have brakes and gears – sort of.   Can’t actually reach the high/low gears.  But I can ride it!

All in all, mostly an exercise in hunting for parts.  In retrospect, probably not worth my time.  The rear shifting is most likely off because of some bad cable housing and a pretty mangled shifter.  Next day will have to be spent on replacing the bad housing and replacing the shifter.