How to Build a Boat out of Plywood (15 ft, 4.5 m Dinghy)

I built this 15 ft or 4.5 meter dinghy or fishing punt in early 2010 in the Philippines (Bohol Island). The video describes every single step until the boat is in the water. The purpose of this boat was to bring me out to the reef for diving and snorkelling. I put an 8 HP outboard engine on it which was fine but the boat can also take a bigger one, maybe 15 HP or so. You need about 4-5 sheets of plywood to build it. About 10mm for the bottom and 6.5 mm for the sides. Update 11