I am thinking the outrigger bracket will weigh a little over 100lbs. Using marine ply for the stringers and motor mount. The rest will hopefully be divinycell as the rest is the float chamber. I am thinking about going even wider with my bracket. Wider to the point, that its over my trim tabs and the actuator itself will determine where the bracket stops. Trying to get a 48" wide chamber. Then that leaves me room for twin engines without modification. The engines really need to be on 34 1/2" centers. But I want them as wide apart as possible. But for now its getting the single 2.5L Merc. Unless I find another during tax time.