i recently ran into a seemingly great buy on a boat without an ingine. it is an older center console that i would like to rebuild and put my evinrude on it. anyway, the boat has a large (3ft. X 2 ft.) soft spot, right behind the driver seat. the hull is fine as well as the transom. i was thinking the best way to fix this would be to cut out the spot, replace it with new marine ply wood, and fiberglass it back in. Is it this simple or is there much more to it, or an easier way. any info will help me here since i don't want to buy something i cant fix. Also how much would i be loooking at putting into this project? thank you for your help!