It is finally finished. Paul Murphy at BC Stainless in SA made it. His workmanship is top notch, and given he now has experience making windsurf trailers I would recommned contacting him if you want something special (no he is not paying me or giving me a discount for this plug). This one has venting in the sides and two levels to one off the side pods. There is a false floor with the sails underneath. The foam is insulated. Weighs approx 350 kg which is very light for a trailer. The towing system is a Treg.
Put a roof top tent on the trailer to sleep in. Something like this:
www.autohomeus.com/roof-top-tents/maggiolina-tent/