He has a points style ignition, and that means there's a lot more that matters.
I know it has points. But by hot wireing the coil, it bypasses any other possibilities.
when the coil is hot wired see if you have spark at the spark plug
If no, It a problem from the plugs back to the coil. No balast resistors, or any other wiring needs to be chacked.
It sounds like you have some extra cars, i would pull a distributer ( that you know is good) and put it on, and see if it changes anything. if it doesn't barrow a cap and rotor from another car...still not starting, Barrow a coil, still not staring change the pug wires. still not starting...buy new parts because what you thought was good...is bad. if you put in a good distributer, and it does run, then its prob your points. you could also turn your car over with the cap off and inspect that your points are working etc etc.
All I meant is by hotwireing the coil, you have LESS to check. just the coil...forward, not the hole wireing of the car.
once you get it running, with the new part, take the hot wire from the coil, and see if it will work by key. and then your done...oir maybe not.
Phil