Have you ever torn apart an all-original car to build what you wanted?

So I bought my Shelby Dakota brand new in 1989. A few years ago, I decided to put a dart/duster snorkel hood scoop on it and threw a 360 together and pulled the original 318 , also lowered the rear sobit sits nearly level. The lifters failed and destroyed the cam, so the original 318 went back in except I topped it with a 4 barrel carb and boxed up the throttle body injection. I also did not re-stripe it as original.
Back when I bought the Shelby, also had picked up an all original 71 Barracuda ragtop. B3 blue? 318, auto, PS, manual disc, AC , flat hood and with a manual top. I installed a rally dash and a 340, buldge hood, painted the car and the grill sub lime.

Build what ya want and don't look back.