Electronic ignition for Slant 6

Actually YOU DO NOT NEED to do that because all or virtually all 69/ earlier replacement store-bought voltage regulators are now solid state. In other words, just buy a replacement regulator. On a side note------my 67, when i bought it, had a mopar breakerless conversion with a mechanical VR. Nobody has ever proved to me that it REALLY matters and I've been at this a LONG time.
Go ahead and try that and see how that works out for you! More people have had problems then it being a solution!