Pardon my saying this, but AF camera use contrast discrimination to determine focus distance, in general. They're not rangefinders in the conventional use of the word with respect to cameras.
The Hexar AF is a lovely performer, however. I believe I have a very nice photo book on the Irish Tinkers which was photographed entirely with one of them.
Joe, good CL bodies with working meters are not all that rare, and not all that expensive either. $300 will usually net a top notch example. They're a little more convenient than say an M4-2 with Voigtländer or Leica meter in the hot shoe, but not by much. The best thing about the CL meter is that it's a ver tightly defined limited area metering pattern, great for precision..
G