Whitewater Emperience Level?
If you don't mind my asking what is your paddling background? The reason I ask is that I got my first raft a couple years ago, my background was a lot of canoeing Class II and some easy whitewater tubing plus a few commercial raft trips here and there. What I didn't realize when I bought the raft is that I am now responsible for my passengers safety in a huge way, and really needed to take a three day swiftwater rescue course to be safe and know how to react to common incidents in a class III+ environment.
Basically if you bought a raft, don't be surprised that you just became a raft guide whether you intended to or not (and footcups won't prevent everyone from falling out of your raft, people find creative ways to take unexpected swims - and you're responsible to ensure they make it to safety when they do).