Thanks for the feedback. This balancer sounds different than the diesel motors. It is well worth whatever care and time it takes to get it back on carefully.
I just want to make sure you know that I counted the links on my new M103 timing chain. I posted the results in the "anyone ever broke a timing chain?" thread.
An installed chain will include 95 pins.
Thanks very much for the pictures and your continuing to take time to share what you are learning in the midst of a project that is obviously demanding much of your time.