Having only used heavy spin cast gear up in Pulaski I have got to reiterate what you have heard from the other folkes here. Stay relaxed , stay warm and stay calm. You are about to have a ball. My first salmon up there was an 18 lb silver and I was thrilled. My Dad was genuinly concerned that I wanted to keep a little guy like that.!!! That was the littlest of the trip.
When I got home to my wife she caught a look at me when I wasnt wearing a shirt and wanted to know had I gotten into a fight. I had bruises from the butt of the rod from below my belly button to my sternum from working salmon like bass . It was the fishing time of my life. When I get back with fly gear I know that my fun will double.
Go with the biggest , meanest reel that will fit your rod and fill it to the hilt with backing.
You can also just use mono .That way if you start to get spooled you can cut loose and not throw away 50 bucks worth of fly line.
I envy you.
Let the fun begin.