If you replaced your magneto with a van dgraff generator what difference would there be? Your battery with laydenjars gear enough extra power after your ride to charge a 12v dc domiciles battery for 8 hours. Provided you could effiecienty downstep it from the 1000's of volts and up the amps. Tesla basically invented the generator and alternator it really hasn't changed in over 100 years. Cdi isn't anything revolutionary it just uses a magnetic flux field instead of points and a camlobe.
These inventions all fit together to make something incredible.
It just needs someone like bill gates to put it all the technologies in one unit and sell it.