I originally started my project in a tent in the backyard with the best intentions of keeping it out of the garage. Eventually, my day of calamity came. High winds lifted the tent off the boat despite shoring it up with various 1x2s, galvanized pipes, and other damage control equipment. The rain started to fill the boat with water since I waterproofed the inside of the boat with 3 COATS OF EPOXY. My wife and I scrambled to get it inside. At that time, I hadn't glassed it or painted it or put on the seat tops and centerboard trunk, so it only weighed 60-80 pounds and I have a strong wife. Together, we pressed it overhead (she taking the heavier stern of course) and lifted it completely over the fence gate which wasn't wide-enough to go through.
A bunch of other stuff had to be frantically moved out of the garage onto the side of the house.
THe moral of the story, if any, is build a strong tent.