Hi victatwin, been there done that some years ago on a 125 2 stroke Fling Flea motorbike that had Prince of Darkness ignition that barely worked from the day they left the factory during the war. Being a single cylinder I used a Holden coil and a small gel battery to power it and worked fine. You could use any twin outlet motorcycle coil as long as it came from a points ignition motor. CDI coils may work but I'm not sure.
