You seem like a nice enough guy, but I think what you should do is just get your parents and her parents, and the both of you all to sit down and talk it out. Make a plan. Be willing to compromise, like if they say "No going out past 9:00" then you'd better be home by 8:45. Going behind their backs is only going to make them mistrust you more. If you can stand up to them, tell them why you care about her and that you're willing to talk it out, then you'll look mature and assertive. Blow your gasket, and you can kiss her goodbye.
Always remember if their final answer is no, then it means no.
If their final answer is no, then just stay friends with her for as long as it takes for them to come around. Prove to them that you can do this without getting into her pants or loosing your cool.