Standard fall/winter overnight fare. There won't be many biting bugs to speak of unless its unseasonably warm.
The suit or top is your choice. If i was in a duck I would bring the suit for the rapids day on westy, its always easy to cool off.
The closest trout is 100+/- miles upstream. If you fish, you will be fishing for catfish and cathing them and humpback chubs which must be returned immediately. If you see catfish rising, which isnt that rare on ruby, look around and see whats on the water. Try different bugs until one works. If the cotton was blowing I would say bring a pattern that represents that. They like to sip the cottonseed. If nothing is rising, its time to put on a "bait fly", like leftover lunch on a size 10 fly of choice and start dredging, or just drink.