What coil..?

the big square-top Accell Super coil is a killer piece that usually lasts decades. It requires a matching resistor. Mine was new in 2004.
Kim, right here on FABO, had a 30 year old one for sale not long ago. check the Forsale section.
You can use that Chevy coil but it will want more input voltage than what comes out your dual-ballast, so you will have to jumper the supply. IDK if or how this will affect the ECU during cranking. I think it will be fine.