I am with Kalli on the dry suit.
This is my first season wearing a dry suit and I love it. Yes - I have gotten a little wet - but only when running class 4 rapids in my duck - it can be a very wet ride
I have been using merio wool bottoms and top, as well as a fleece set - wool seems to be the better fabric not "smelly" at all. But hard to find in heaver weight bottoms for those really cold days.
With a dry suit there is no "smelly, sweaty, fuzzy rubber stuff..."
Found this link you may find helpful
Women's Whitewater Gear
good luck - enjoy shopping