63' Dart Is a 413 possible?

Hi everyone! I am new to the board. I recently picked up a 63' Dart 2 door. Its a real nice car, but not perfect. The guy I got it from threw in a 413 and 727 witht he deal. My question is, how do-able is the 413 swap in the early a's? I did see Schumacher sells a motor mount kit. Anyone have any ideas?