kelsey-Hayes 1966-1972 disc brakes

Just started on my Daughters 65 Cuda so I am new to Mopar stuff. I want to change over to Disc. Are these a large Ball Joint or Small? Large bolt pattern or small? What else do I need for the swap into the 65 ? I live in Taylors S.C. , how about a Ball Park as to where you are so I might pick it up if it will work on her Car?