What type of reel to use when fishing Kings in the Kenai river?

I am fishing the Kenai river this summer (end of June), just wondering what reel would be best suited to do this. I plan on wading in the river, no boat fishing (maybe a little bank fishing on some deep spots). I am getting an ugly stick 8.5' rod, but for a reel I am still up in the air. I have a Shimano Torium 20, would that work for this type of fishing? Also, how does this reel cast, the fishing guy at Dicks Sporting Goods said it casts really well, but you never know with those guys. Thanks