Any of those in the weight appropriate size would make a good first boat. If you buy a used one, you can sell it at little loss if you decide you want a different boat later.
Gearswap on here and Craigslist are the places to look for used gear.
You are super lucky to live so close to the Ocoee. That isn't a good river to start on but it sure is a fun river when you are ready for it.