A 24 inch plane won't be big enough to carry the weight of a FPV system. Before you go FPV though, you'll need to learn how to fly.

To do that, I have a few questions. First, where do you plan to fly? You'll need a flat runway at least 300 feet long with another 400 feet flyover space on each end and enough width that you won't need to fly over trees or any kind of buildings or property. If it wouldn't be ok to crash your plane into it, then don't fly over it. For most of us, that means joining a club.
Second, what's your budget? I'm a much bigger fan of a new guy figuring out what he needs and then working out the budget to get it. For a basic .40 size trainer with all the stuff, you'll be looking at around $600. A HobbyZone Super Cub is much smaller and electric and much cheaper, but not as nice in flight and probably wouldn't handle the weight and drag of a camera very well. Even if it did, getting tossed around by the wind won't make your videos very watchable. The plane hobby naturally lends itself to moving on to different planes to get different flying characteristics, so figure on spending more money later on.
Third, are your primarily interested in FPV and want an aircraft for that, or are you primarily interested in planes and think it would be neat to add FPV to that hobby? If it's the former, look into quadcopters or hexcopters. The better controllers are really good at holding them in a hover so the piloting skills required are pretty simple. And, of course, you don't need much of a runway. If it's the latter, figure on learning FPV with your second or third plane and focus on basic piloting for now.

With the answers to those questions, we can do a much better job of advising you on what to get.