sekaijin
I was in your situation with my 1984 Le Tour about a year ago. Through trial and error I got them back together and functioning. Unfortunately I'm at work now and your pictures are blocked so I can't be of much help. I will try to look tonight and get an answer to you. It would be great if you could post a pic of your bike. Do you have a triple crank? Mine was in tough shape when I bought it and I don't think double crank it came with was original.
Banzai
I agree these are not flawed. Mine work great and thus far I haven't had to make any adjustments. I love not having to feather the left lever all of the time.
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Nothing compares to the simple pleasure of a bike ride - JFK