Our overall goal is to be able to beat any untrained/poorly trained person of larger size. Boxing was a good start, but we need something more practical because hitting someone with a closed fist in the face will just break hands. We don't want to have to spend money on lessons, so far we just used a few friends that box and my cousin that used to spar with a state champ in WI. So I guess we need a fighting style that can be easily learned, but will be effective in street fighting. Any suggestions?