Hi Wayne,I have sent construction details.I assume you now have plans from which you will see that Krispie can have 2 mast hieghts to suit either set of sails required.As you can see from my post I planked with .5mm ply and the hull has turned out very nicely and light. For R/C I decided to keep the rudder skeg,and as plans show removed deck deck panel from frame5 forward 5.5 ins X4ins to fit R/C gear.I retained centre deck beam into which I morticed the top of the fin to give rigidity.Fitted sail winch and rudder servo either side of fin,flexible control cables emerging through afterdeck to steering yoke and formed aluminium tubes from sail winch fore &aft through deck for jib &main sheets.Wickes have better Alli; tube thinner wall thanB&Q Iused 12mm for mast, 10mm for booms. Hull has been primed but codition prevent fish spraying; sails almost finished I will post pictures when done. regards sextant.