Every clone company offers guns and frames that are true 1911A1 style. I am curious about how difficult it would be and how much it would cost to machine a frame (like a SA or Caspian)to accept the series 80 safety mechanism. Any thoughts? I know the slide is also different, but it can be purchased as a part from Colt. I know it would probably be cheaper and easier to just buy a Colt, but I am curious about the intricacy of making the modification.