Consider paying a few bucks to demo, or take a class. It may be worth your while, in the long run. I have kayaked mountain rivers for 30 yrs. My first boat was a fiberglass slalom boat. It was a good boat, but pretty wild. Good luck & be safe. Most of all, get it big enough & paddle it on a lake or class 1 before you pay for it.
J.Tipton ps. I just like to PM rather than post..