My son and I did as @TrailBeast said and took a trip to the pick a part and picked up the whole set up, coil and module and all the plugs. It turned out really clean, just be careful of the polarity of the 2 wires from the distributorMy 71
My 71 318 Dart still has the dual points and I want to convert to electronic after it has left me stranded. I think it was the ballast but not certain.
What vehicles did you pull the parts from? I have a part yard local to me and will go looking for everything for a clean setup and stock connectors.