i wouldn't think it is chop suey, they are all mantis systems and he knows the complete systems.
to me chop suey would be a lttle hung gar, a little choy lay fut, a litte wing chung, a little eagle claw, tiger claw ,shaolin etc.
If Sa mantis wants to patt me on the back let her, my back is a bit sore, it may help!!
as to the challenge:
i thought northern mantis said we can fight, come down and see?
Anyway why would it have to go through the temple?