It gonna be great Doc! It has been quite a few years, I used to guide for AK West. I had the pleasure of witnessing one of the most prolific K tok King runs in history, imagine Kings moving up river like Chum Salmon. Dont worry about heavy stuff, these fish are biters and move to a fly with determination. Many times the best lines were type 3 - 6 no need to get heavy. Big fish blue is very similar to the fly you have above, just a little lighter shade of blue, no lead eyes. The leprechaun is a combo of green and white, this is a great color combo for the Ktok. I would not pass up a day of Back bouncing for these critters, it is as good as it gets.

Matt