mate, first one that doesnt sound right is your plug gap, i set my plugs at 25 thou. think at 35 your too wide,but you are using a electronic points and big coil so it musta be ok.
removing your igintion switch is easy if you make your self a 3 pronged socket.... remember the piece of inch copper tube i cut so it had 3 prongs to turn the chrome ring holding the switch in ?
i also think your right, the feed to the coil from that switch is pink. not sure how they add the resistance, usually its a block of ceramic with a coil of wire, but where it is ????
i would certainly id the correct feed wire from the switch and chop it, feed a new wire direct to the coil, job done.