Wiring diagram for electronic ignition module on 1979 728

Sorry I have to write in English but the German I took at school is long gone. I live in Texas but am French and still own a 1979 (November 78) 728 stored in France. A nasty rodent ate up the harness that goes to the resistors/Bosch electronic ignition module/coil. The only diagram I could find in Texas was for a 735i (the 728 was not imported in the States) and I ended up with nonmatching connections (one wire too many, I guess)
Would someone have access to that kind of diagram?
Any suggestion would be greatly appreciated.
Greetings from Houston and thanks for your hospitality on this great forum.
B