You don't need to customize it or allocate staff. Your focus should be on delivering good content and giving people a reason to improve on it. Then once you got a substantial editor base, then you can manage a staff.
However, let's be frank, I don't think you have the responsibility and maturity to manage a wiki you promise will be "big".
Anyway, I've seen your wiki. I don't think it'll be big nor will it take off, especially if it's "about me and the staff." Sounds a terrible lot like how dozens of people make derpboards (and derpboards have a predictable pattern) only for the board to eventually die since it serves very little purpose, isn't active outside of general discussion, looks generic and/or ugly, and it serves to temporarily boost the owner's ego since they have a sense of power and importance. And the path to derpboard death usually isn't pretty.