Wickiup has some very large browns, but it can be a long time between fish, and with 2 girls in the boat, that might not work. You could try fishing Wickiup until the girls got to bored and then move over to twin lakes and catch some planters for entertainment. There is a nice campground on the Deschutes near Sunriver. I believe it's called Bull Bend camp ground. You could float from there to the Behnam falls take out without any worries. It would probably take all day to go that far though. There are a few other take outs in that stretch. Get yourself some rapala type lures in rainbow, fire tiger, or black and gold, use a sporadic retrieve, you should catch some fish. We've done some videos fishing that stretch of water on the Deschutes if you want to see what it looks like.