TFO Switch 6 wt.
I have that rod and I fish a 17' 420 skagit head. Steve Godshall made it for me after a long conversation we had about a specific fishing situation I had on a certain river with lots of trees, branches, stuff behind me, while trying to cast. This was before the Airflo Skagit Switch came out. I would get a short skagit head and use tips for subsurface work. For the mouse, get a floating MOW tip. A skagit head will turn over a mouse better than a scandi head I would think. Call Steve Godshall, he'll hook you up right.