This isn't really the place to discuss it. If people want info contact me direct and I'll happily answer questions without encroaching on the Mossie Forum. We're still talking to builders, however, I can confidently say the cost of a set of Taipan Hulls will be less than $10K. Our rules require you to buy your mast and front beam from Goodall Design but everything else can be shopped around for like a new Mossie. So if you're willing shop around and assemble your own boat cost should be about $1-2K more than a new mozzie built the same way.