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Simple to bypass the spaghetti. Run a jumper wire from the battery negative (hot) post to the coil side terminal marked (-). First remove the existing wire that runs back to the ignition switch or you'll be back feeding the spaghetti. Run another jumper wire from the battery to the small terminal on the starter relay (or solenoid) to energize the starter. If everything else is OK it should start.
Have you cleaned and set the points? After sitting a few years, points corrode and won't carry current.