Hello, I have a mechanic who is restoring my mother's 1966 Mustang. He has suggested that I consider doing a conversion from 4-Piston Drum to Disc Brake. Please share any thoughts and recommendations about this to help me and my mother make a good choice, i.e. safety vs. originality... Stainless Steel Brakes A120D Front 4-Piston Drum to Disc Brake Conversion Kit Thank you.