I suggest you begin by converting the pieces you have into .dxf files-with a scarph allowance where necessary.At which point you might ask owners of CNC machines to quote for producing them.In the short term you are unlikely to get close to their levels of efficiency.In the longer term you might calculate how many kits it would take to earn back the cost of a machine and if the numbers make sense you could look around for one.In the interim a few hours of dabbling with the demo versions of some of the popular software to see if they would allow you to create the programs to produce the parts might swing the argument in favour of laying out a fair chunk of money.The situation to avoid at all costs is ownership of a machine with no idea of how to produce the parts.By the time you get it figured out another designer with a tame CNC operator might have cornered the market for your type of boat.