look mate i'm not sure what 3N mean.. but what i can tell yu is that if you play on the draw you will lose
from what i understood his team is not really stronger than you, then why not attack him ?
just position good defense to stop his attackers and counter him in his weak lines and try to win, if not you got a draw, this is what i think.

BUT if you need a "defensive" formation, I'd say 4 -1 DMC-4 as in 2MCs ,ML & MR -1 ST , with all blue arrows except for ML, MR & ST.
down both flanks, mixed passing , "attacking mentality" or else he will score and you won't be able to draw the result, zonal defense, own half with counterattack.

good luck