I'm getting ready to order all the wire harness' for my latest project and have a question I'm hoping one of you electrical experts can help with. On the last 2 69 RR's I ordered a standard harness and a electronic ignition kit. Used my original one wire alt. and the 2 prong ballast resister and everything is fine. My question: Is it worth it to by the 'modified' harness, a 4 prong ballast resister, electronic dist., orange box, and a 70 and later style alt? I already have a 69 alt., so I would have to also pay for a new one of those. Any opinions are welcome. This will be going on a 69 Charger.