BBVD, I would be concerned about silvers on a 5 weight in the Skok. These fish will be hot and will take off up or downstream. You will have a major test on a hot fish. I would suggest a 7 weight but would go straight to an 8 with the potential to hook into a king. I am partial to clousers and would have chartruese over white, pink over white and purple over pink just to have some variety. David has me dialed into using more Angel Hair in my salmon flies as it is bright and really lights up the water. You can't go wrong with bright baitfish imitations.
Best of luck, Steve