I wish you guys would quit arguing. Pretty soon somebody is going to post up one of those crying kid pictures.
I wasn't mentioned in the thanks but I'll still contribute:D
The FIRST LAW OF MOPAR IGNITION IS:
Always carry a spare good ECU and a spare good ballast resistor. Always.
You should have checked spark the very first thing instead of going on this wide-ranging, meandering wild-goose chase involving the battery, wiring, ignition switch, voltage drops, etc. Instead of coming in here and asking for opinion after opinion you should have done the very last thing you did, which was try a different ECU.
Anyway, experience is the best teacher and now you know. I'm glad it's running. Don't get out there with an OCD session and get it non-running. Just drive it and enjoy.
