I’m 2 years in averaging around 20 hours per month.  Yes, very part time but still enjoying it.  The beams, tillers, hatchs, mast and other small parts are complete.   I’m just now fitting the upper panels to the first hull.   Building one hull at a time due to space limitations.  The upper panels have been the most intimidating so far.   Any advice from the Cretan’s out there???