You may also want to find a scrapped GT500A or B with the factory electronic setup. The downside is that you would PROBABLY not be able to get parts if anything went wrong. Having said that, those early Suzi electronic ignitions were quite durable. There are still tens of thousands of 1970's Suzi dirt bikes and motocrossers out there with the original ignitions STILL on them and still sparking away. Let us know what happens.