Elec woes, crank, no start after running then parked.

you have eliminated quite a few things. There is a possibility that the pickup connector is not making contact, or bad pickup. You have ANY other breakerless dist? You don't need to install it, just plug it in and spin it, see if it makes sparks

That tap test is important. It tells you that the ECU harness, connector and power to it is good, and that the ECU is good and it is grounded. Tells you the resistor is good and the coil is good.