CM, I would call these guys, Rob Orzel (the owner) is a flyfishing guide on the Kalama and an all around good guy. My best recommendation would be to hire him for a day.

Contact Pritchards Western Angler at (360)673-4690.
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"You're not a g*dda*n looney Martini, you're a fisherman"

R.P. McMurphy - One Flew Over The Cuckoo's Nest