Engine dies, but turn the key off and back on it fires right back up

One thing you could do is "haywire" an indicator lamp to the coil+ and when it quits see if it still shows power. That would at least eliminate wiring harness/ bulkhead connector/ ignition switch problems

Good idea Del.
Just a little 12v led would work great for that without drawing any power off the coil.
Well, not much anyway.:D