Okay. So go to JKD, which has heavy kung fu influence?
I recommend bjj, because the perception of bjj guys as fighters is high, and that seems to be the concern here. I'd just like to comment that I know a longfist guy who is a phenomenal fighter, weighs much less than me, but manages to keep me away from him with his **** kicks. Once I'm in, its scary for him, but we're pretty even that way.
Hsing yi has a great rep as fighters, lots of sanshou success stories from those guys. Closer to what you've already trained, plus most of the hsing yi guys I've met fight quite a bit.
Did your longfist class spar? Full contact? I'm not questioning your decision, I'm just wondering what led to the lack of results in training.
IMHO, there is not a fighting art in the world that does not turn out good fighters by any other course than fighting. Once fighting is incorporated, just about all of them can be made to work by the right fighter. Even some of the lame arts have a good fighter somewhere, even if its only working because of them.
I would use a blue eyed, blond haired Chechnyan to ruin you- Drake on weapons