Try to get your hands on a AMK Doug Ritter PSP. You'll have a flint (Spark-Lite, very small and efficient), you'll upgrade your mirror and whistle, you'll get a decent button compass, you'll upgrade the razor blade to a #22 scalpel blade sterile, you'll get some braided nylon cord, safety pins, survival instructions, etc. You can add to that a small diameter tube, a condom and a wire saw. And you could upgrade the water purifier to Katadyn MP1 tabs that will kill cryptosporidium...