The 3 and 5 wt are fine for grayling. The 5 is fine for most trout, unless you're chucking large weighted flesh flies, but July is early for that. If you intend to fly fish for Kenai sockeye, then an 8 wt is in order. Effective sockeye flies are easy: chartreuse or fuchsia pink yarn on a size 2 hook - most sockeye are flossed, but some do hit the fly. Depending on water levels and your willingness to fish away from the crowds - and with the bears - it would be handy to have access to a spinning or bait-casting outfit when it comes to meat fishing for sockeye.

I fished a small river where the kings hadn't really begun spawning yet, but the char were ready and absolutely chased down Chinook egg colored beads pegged above a size 4 hook and 2 BB split shot on the leader. They were super sporty fish on my 5 wt.

If no salmon are spawning yet, RB trout readily hit black woolly buggers, with or without a red bead (egg-sucking leech style) and skated deer hair mice patterns, which is lots of fun. Pike will also run down a deer hair mouse, but be sure you have some wire bite leader - I didn't, and they cut my leader more often than not.

I haven't fished near Nome or Soldotna, so don't know much about specific locations.