Maria - Not to try and throw any wrenches into the conversation, but from what I have read so far one of the key items you seem to be planning to use is an original style "electrolux" ignition switch like the old worn out one you have pictured above (has the metal shielded cable that goes to the distributor and two wire connection posts). You mentioned having another serviceable switch to replace that one. Is that correct or are you changing to a different style ignition switch?
Some of the information mentioned above doesn't directly apply
if you are planning on using that original switch, so to try and get your plan and possible answers better clarified, can you answer that question please? Once folks know what switch you intend to use, that can help folks put together more accurate suggestions and guidance on what wiring connections are needed and where. It won't be the final answer, just getting things sorted out to work with what you have and intend to use. Details on everything included in the plan will help piece it all together even more.
