No Spark Question

"Wiggle" the livin' you-know-what out of the distributor connector. One good way to do this is to connect it so that just one pin is engaged at a time so you can twist / turn the two halves, then engage the opposite two pins and repeat.

With the key in 'run" use a jumper wire to repeatedly ground the distributor connector wires one at a time (I forget which one). One or the other will cause the ECU to produce a spark each time if good.

Make absolutely certain the ECU is grounded, although if the ballast gets hot, it probably is.

Has the key been left on for a long period, several minutes? This is hard on the ECU / coil

You have a mulitmeter? Hooke it to the distributor connector on low AC volts. Crank the engine, the distributor should generate about 1 volt AC

To be certain the system has voltage (sounds like it does) try jumpering a clip lead direct from starter relay stud to coil +

Don't forget to check high tension coil wire for open.