Help clarify harness adaptation existing HEI to OE points

[DeadheadNM]

I’m looking to revert back to the original points distributor in my 72 Blazer. The engine harness is an American Autowire example made for use with an HEI distributor. Am thinking the hot wire to the distributor will require modification with use of a connector that jives with the OE type threaded post on the external coil.

Am I thinking correctly? If so, is there an adaptive connector by chance that I can screw into place on the external coil and plug the existing HEI connector on to without modifying the harness at all?

Here’s what AAW claims:

“This harness is modified for a 12 volt HEI ignition. We replace the original resistor wire with a standard 12 volt feed, and will include a connector for a GM large cap distributor. If you are not using a GM large cap HEI distributor, the connector end may need to be replaced to connect to your system.”

Thanks.