Push Button Start

I was wondering if this could be an option for me. The ignition switch on my 69 Cuda went bad, and right now I have a igniton switch from a 68 and whatever other years to start the car. Although, I'm sure most know 69 model year was a oddball year, so they are very hard to find and the one I did find is $175+ shipping. So, I was wondering if I could just put in a push button ignition, and how to do it without screwing something up, if there is a way to screw anything up. Thank you in advance.

Jason