Just in case anyone was interested, I am making a 5.6m 4 Battened wave sail.
Started with some cloth then, made the sections, sewed them up, shaped the seams and put it together, just putting the re-enforcement on and crash stripes.
Not selling them but anyone wants to come and build one for themselves and pay for the cloth etc then get in touch, only thing I cant really make is the mast sleeve as cant buy that cloth. Am going to make my daughter one next.