If you are going to fish outside of Fairbanks, a 8wt will handle the salmon you will encounter there. The 8wt TFO in either 9 or 9'6". I used a 9'6" there last summer with no problem. The Chena Kings can be big but are a little tired by the time they reach that far. The river isn't that big either. Second the 3-4wt for grayling. They are a great fish and love dry flies. I hope to fish it again early this July also. Good luck.