My room is veeeeery small.Wow the sensitivity of these speakers is going to need some power. Depending on your sitting distances I think will determine which one you chose due to the different in the dispersion from the speakers. They seems pretty similar. I would try the KEF, but that's just because I hear people like them and not from personal experience.
It's a shame you can't get RSL speakers there.
Spl will not be an issue.