The fact that it start and broke in and now has a weak spark is indicative of module or coil problem. I didn't catch which coil you used, but I would try those two first. Erratic spark/spark scatter, but I would check other factors, it appears like a case of bad luck, where it's not just a single item or component that is causing the problem. It will show itself. Like we like to say, step back, take some time away, breathe. Go in with fresh and start and be willing to start tearing in. When you can, run a compression check, mark your pressures and post back to us. I had a vehicle blow a head gasket between cylinders once and it started doing something very similar to this. If it did it between 5 and 7, it would definitely not run very well.
