Pokemon heart gold team?

So far, I have 3 of 6 selected. I want first generation pokemon only. My lead is an alakazam that is EV trained in speed and special attack. (405 special attack!) Then, my wall is going to be a Snorlax as soon as I breed the right nature. And will EV train him in special defense and defense. And last, I have a dragonite with no specific purpose, he is just all around good. Please tell me what else a team needs: besides a lead and a wall. And what pokemon would be good in those positions. REMEMBER, I ONLY WANT FIRST GENERATION POKEMON. Want to stay original. Please don't tell me anything that you need an action replay for, because I don't have/want one. Thanks for your time and help. 10 POINTS to most detailed answer.