4 x 25L Fuel tanks are up front under the forward seat to try put a bit of weight into the bow, which she needs. 40/2cyl are light and the transom is actually quite high above the waterline. Nowhere for water to ingress if the odd cupful comes over the transom cause the fish hatch is up near the stern.
Not sure if youve fished much on boats with no false transom, but if your weight distribution is right on the boat, and you arent sinking the transom with a pair of 110kg 4 strokes, you hardly get a drop of water over the transom during a days fishing.