70 Dart, how to change regular dash to Rallye dash?

Hey Guys,
The only thing I want to say now is that it was my mistake buying a car without doing the proper research. My best friend growing up had a beat-up 69 Dart with 340 and I really liked that car. I had a 74 318 Challenger. Nice enough but no 340. I'm going to enjoy my Dart no matter what the hell it is and I promise all that in the future I will not misrepresent the history. I am sure the car will sell itself - flaws and all.