That video is not bad, here are some comments
Some comments. Most of your video is excellent information
Please do not refer to the Mopar breakerless dist. as "HEI." Also, 413/426/440 do not use the same dist as a low deck
I've had good luck with the stock Mopar coil and no ballast, using a GM module. The GM module varies the dwell electronically, and does not seem to hurt the coil or the module
Dielectric "grease" is not the same as thermal compound. These modules are designed to use a thermal compound for heat transfer.
You do NOT need to jumper both sections of a dual ballast. Incidently the ballast wiring for the Mopar ECU is done the same way for the coil either breaker points or breakerless. ON a Mopar breakerless you can actually swap in a points dist. in an emvergency, simply connecting the dist wire to the coil NEG and disconnecting the module. It will run fine
Be careful screwing with all this as none of the ignition/ regulator wiring is fused, and therefore not protected
I see you started this with no heat sink. That is dangerous. These modules need a heat sink
Last consider using the ignition switch IGN1 output to fire a relay and use the relay to supply ignition and VR power. This keeps the VR from causeing overcharge due to voltage drop TO the VR