You got no Spark from the Spark's

You say you have got 12 volts coming out of the coil?

Is the coil switching? Sounds like you could have a problem with the Distributor or ignition amplifier. But just changing parts until you find the fault is just not the way to go.
Do some proper diagnosis, which would only take about 10 min's, and then replace or repair the problem.

If you had no spark to start with changing the dissy cap, rotor arm, HT leads Spark plugs or Spark's as you call them was a waste of time and money.