Awesome! I'll make the RP now and I'll send ya'll a PM with the link. It will also be editted into the first post.
It will be a fantasy place with the gladiatorial-like arena/entertainment system. It won't necessarily be a school but more.... a place where the best (or those striving to be the best) can test themselves. Those who want to learn can come to the arena to train and get better, though there are no teachers, senseis, or education/training system set in place. If someone wants to be a sensei or start a training session, its open to RP-ers to do that.
I was thinking of setting up dorms and roommates right off the bat. Haha. Everyone can come here voluntarily. It isn't like the REAL gladiators where they fought to the death with POW's or slaves. I guess, if an RP-er wants to incorporate that somehow in the plot, they can.
I'll make a section for mentors, since you requested it. =)