The only experience I have north of here is on the santiam and willamette. There's a float from Jefferson on the santiam to buena vista on the willamette. That stretch of willamette from the mouth of the santiam to buena vista seems pretty productive. Sorry I'm not much help
Hey! Have you checked your classified today? BlackTalon may have exactly what you want. Don't mean to stick my nose in, but I missed out on that Skeeter pontoon by not checking back often enough. Good luck.