For a Leica film body, find an M2. You say you like manual, the M2 needs no battery, I personally feel that it is one of the best. An M4 is easier loading, you might prefer it. It will ultimately be your decision. Do what you feel is best for your style of shooting. The Hermes is fancy, overpriced, even at half price on fleabay. You can get an M4 or M2 in great shape and a few lenses for the price of that Hermes.
Just my 2¢.