My Zorua has a lot of energy. I get this feeling that he wants to battle, but I'm not familiar with any of the moves. He's a dark type, and I've seen some of what dark types are able to do in the anime, but I want to make sure I understand completely.
Charge by the hour, like any other person giving lessons. Decide how much your time and knowledge is worth. With the amount of Pokemon in town, I bet you'll be very successful.