First off, lag welcome to the forum and good questions..
most of the pros and a 1/0 have responded well..
I can say my hand won't be raised to a whippin' rod rigged with light line for the purpose of a long sweep, got one, nor a tuna (hmm) rod with a 1/0 hook (currently using a 6/0 hooked to a live herring..lol) .. Those methods are deadly in the wrong hands.. Mediocre at best in the right ones..
3 fan showed you some good early sept pics of great fish.. I'm sure he worked for them and was rewarded by strikes..
For many years I fished late august early sept.. Some were GREAT some were failures.. It's all the luck of the draw my friend, when ever you get the chance you just gotta go for it.. Being willing to cover lots of water will up your odds.. Walk high and low, I look for fish at that time.. Sight fishing 101..
If fish are around then the word will be out for sure somewhere on the internet..
From a blind mans point of view, again it's a walking game.. Check the estuary.. If you see fish rolling then you know some are in dsr and quite possibly upriver.. I like the dsr as some of the best salmon water but I don't like the high price to play.. Been there for years, it's one of my favorite waters on the river but you will need to make your choice, there is a lot of river to fish..
As for Gear:
your rod, reel is adequate.. While the U sticks have strength they lack sensitivity .. They catch fish, just keep focus on your drifts..
Line- 12lb casts better then 14 to me.. You can even get away with 10 but thats usually my lowest leader strength.. Now it may seem strange I threw those numbers out but like clint said, use a heaver leader(14-17) ..They are usually that early not line shy, I use a lighter line for better cast and drift,(not 4,6 or 8 you gotta be able to have some, be it little control of a fresh king or hoho..
Baits, flies, weights ?? It's all up to how you feel comfortable..Fish will strike a jenson (ah jack ? ) egg and they will strike a nicely swung fly.. I do the fly thing with a swing across and down in front of the fish, again I try to sight that early.. Lower in the river Size 4 streamers, buggers and bunnys have all worked well for me.. Higher in the river 6-8 buggers, leeches and eggs have been better taught.. Not to say the big stuff wont rock up there.. It's all up to the presentation and the fish..
Fish good water, broken is best..
Lodging: I think you asked ? It's all good to me.. I love camping but also stay at reasonable priced lodges.. Frequented most all of them (well not Jailwater) .. the double-E is a good lodge
Have fun and wish ya the best of luck
Peace & Tuna