Nathan,
All it takes to be a tournament host is someone who is willing and able to do it. While sure it does take some understanding of the rules to make sure the people you play with are taught correctly, that is only part of it. The hardest part is trying to find a place and people committed to it. If you can do that everything else will fall in line. So just go ahead and start praying and seeking opportunities to find a place/people to start showing people how to play the game. Use I/J starters to introduce, then make "identifier" decks or the like to keep things very simple at first. If someone wants to go hardcore and start playing in a super competitive nature that you are uncomfortable with, send them to us here on the boards.
The main thing is don't overthink it or make this more complicated than it has to be. Find people that enjoy playing games and meeting others, and go from there.
