The overcoat should help you with your main two stats and keep up sanction for the crit attack power. I use the coat for drg and mnk all the time.

Id say if you throw beans or something you wont have a problem with TP so def take the overcoat over the AF. Up to you if you want to switch out the DL cuirass for -70 crit attack +20 attack and +5 str but if you can keep sanction up id still pick the overcoat.