best all in one front disc brake kit for a 65 Dart

With Scarebird, you will need to drill new holes in the rotors for your 5 x 4" bolt pattern, or buy the rotors from them already drilled. Most all the choices can be bought as complete kits, it is just a question of price: ~$800 for Wilwood, ~$600 for the 1973+ front disk setup, ~$200 for Scarebird. Replacement parts will be easier and cheaper w/ Scarebird.