[my new 72]

Won't the whole sleeve from a 73+ column work also instead of grafting in the protusion itself? Could save you some time. You could always make it a push button start with a toggle with a cool red flip up protector to turn the power on and then push a chrome button switch on the bezel to turn the starter. The power toggle could even be a two postion switch to accomodate for the ACC position. Add an alarm with an starter disable relay and it'll be just as safe as a keyed ignition switch. He!! if you have an aftermarket steering wheel you can buy the wireless center piece to control the starter. Take it off and inside with you at night and it won't ever start unless you press the button. I think I may be getting a little ahead of you though. Hope I gave ypu an idea though. Either way would be really cool.