I have an idea. . .

Yes, I realize that the majority (and it is already a small sample) have no care on this, but I'll post asking for opinions anyway. I had the idea of this summer running an RPG as an outreach and as a way to continue building relationships with students. Now, I know many would think this playing a game like D&D is a bad idea, and I would agree ("what do you mean I can't play a chaotic evil Drow Cleric?") However, my idea was to do an RPG based on the Chronicles of Narnia. Narnia is a perfect setting for an RPG, and the presence of Aslan can keep the game Christ focused. I know that there are at least 3-5 active youth group members who would be into this sort of thing, and there are another 6-8 "fringe" people who come on Fridays and/or Lock-in type events who would like to play. I guess the problem comes in that doing this is going to take a lot of work to put together. All of the nuts and bolts RPG rules for a Narnia game would have to be created, like what kind of racial bonus does a beaver get. (this is assuming that I would just make it a D20 resource and use the base D&D rules, I could make my own game as well). There is also the consideration that a lot of church folk have a bad conotation of the phrase "role playing game" (if they are even familiar with the phrase). I am just at the tail end of a big controversy over Halo, so I don't know if doing something like this would go over well (though if somoene thinks it is a bad idea for teenagers to purposefully expose themselves to tales told in Narnia with overt and direct Christian themes then they are daft). So, like I said most of you probably don't know enough/care enough to have an opinion but I'll ask anyway. Do you think this is an idea worth pursuing or not?