Having guided on the Alagnak, I can highly recommend Van Hartley, who owns Branch River Air in King Salmon. However, at least on the Alagnak, you will be a bit early for Kings, and the best King fishing is down low in tidewater, which will be extremely difficult to fish without a motor. Trout fishing high in the system at this time is very good. One last word to the wise--when you get down to tidewater, beware where you camp. The high tides can get very high that time of year and you could wake up in the water. Good luck and don't feed the bears...