Thanks guys, now we are getting somewhere! For the mainsail track I will make a tube in glass or carbon (lerned the method from Phill) glue it on and then laminate it to the spar and cut it open before fairing and finishing.
Well you are not off topic if it comes too beams, after the mast I will probably give them a try.
I had been thinking of using UD carbon for the stiffness and BX 45deg. glass or carbon (the BX carbon is hard to obtain were I live)for the rest.
All fittings will be done in carbon and laminated r done directly on too the spar