I bet the steelhead fishing would be some of the best you've ever encountered. Checkout Kodiak Kamps for gear rentals...They could provide you with a raft and all the other gear you might need. Roland with Seahawk Air has some great rates. If the winter is weak and the river is open you could probably float down to the village of Karluk and catch a Island Air scheduled flight back on a Mon/Wed/Fri.
He charges by weight so that helps price wise.
I would just plan finding a place where you can glass a large area. The less scent you spread the better.