sure Nordsee.. its so easy.. and its so inexpensive.. i will scan the drawing and share you.. while i am making lots of variations with super structures, from torpedo boat to open hull boat.. i9ts so balanced.. and just can go with a toy motor..
the foam board i uses here is based on P V C, the technical name is styroflex, came as sheets of 8X4 feet, in various thickness.. here i used 4 mm for deck sheets and bulk heads while 3 mm for sides and bottom.. this makes the craft so rigid.. and so lite in weight.. usually this sheets are used to make sign boards, name plates, and thicker sheets for making false ceiling and room partitions.. can also buy in various density and colours.. the two sides will be so smooth, so we can use the craft even without painting..