I'm going to voice my honest opinion here.
Slapping official on a thread title does not make it in any way actually official.
Whilst I agree with the sentiment your too young to run a league succesfully. Sorry but from my experience maturity and actual admin experience are essential.
You know that I've been looking to create something along these lines and I currently have threads running in several different Nintendo forums. You need to do the research first. However, if your open to suggestions/help give me a pm with your ideas and where you see this going. I may lend my support if I think it's going to be worthwhile.