Under the pole bracket area with a few layers of 1708 biax is key, also the gaps between the outer hull side and where the hood seal recesses into are flex points. A layer or two over the motor mount plates and one across the tray floor if you have the turf up already.
Surf lay up would be more of the same all over inside the hull. Don't go too thick as it can ruin Bpipe exhaust chambers in an already tight spot.