Relocating the fuel tank?

One of the ideas I'm kicking around is to try to reloacted the fuel tank under the floor. After looking at the saddle tanks, I don't think I like them very much (they're too high IMO and taking up space that could be used for fishing poles). I know this means the floor has to come up, but looking for input. I know in later models (and I think in the CC version) the gas tank is in the floor. I'm just wondering how hard it would be to find a tank that fits.