Wiring Suggestion/Help

Does classic have the Electronic ignition pigtail that you can add to the 68 harness?
Don't know, and not sure a rep/tech would know if mixing them with their plug-in connectors would align across mixed years, so thought someone at FABO would have faced this and have a definitive answer/solution rather than rolling-the-dice. Already dealing with radiator issues associated to adding aftermarket AC that required a special compressor bracket that conflicts with the mechanical fan shroud that forced buy an electrical fan. Been through 4 radiator/fans trying to get a proper fit given the bracket/compressor only leave 4.5" of space. Everything is a domino effect it seems.