I have a 1969 Buick Riviera that is all original and has been sitting for a few years. I am going to be doing a complete restoration but I need some advice. I want to make some updates like disc brakes all around. Purely bolt on updates that can be reverted if need be. My question is, would updates like that hurt the value or image of the car? I understand it is my car and what I want to do is my choice but I do not want to do anything that would take away from the car.