Step-by-step. my boat build resembling the amazing curves of the riva range. all plans were self thought of from my imagination, self draw and self cut. My friend and i made a make shift anchor out of an old paint can filled with rocks. we put the motor on, nailed down any furniture, stocked the boat up with supplies. If you are looking for a way to build an inexpensive boat you should definitely consider plywood boat plans. using plywood is one of the best ways in which to build a.