My grandfather recently gave me the keys to his 1940 Ford Sedan Standard. I'm not a car buff but I am honored more than anyone can imagine. This beauty runs good and the body is in great shape. Should I replace some of the small things like the window handles, radio, antenna, stitch up the interior or just leave it alone? It has a 1950 Flathead from a Ford truck V8 85 Hp. Since some items have already been replaced in the past, will I be deducting some of its worth by replacing some of those parts that wil just look better new? I am NOT interested in selling it but obviously do not want to devalue the car by making unnecessary changes. Open to any and all input. Thanks, this is my first post.