The basic plan was to lift the hull in a sling. Four rented two ton chain hoists were used. The chain falls on the starboard side would go down to the sheer, cross over to the port side and attach to the sheer there. Where the chain rounded the sheer, it was protected by an L-shaped block of wood. On the port side, the fall went directly down to the sheer and attached. One side would be lifted while the other was let down and the hull would slowly turn over.
I made weldments to slip over the ends of 4x4 posts from which to lift. A post with crude pyramidal 2x4 bracing was placed both sides, fore and aft. They were linked together below the hull with another 2x4. Other weldments hooked over the sheer on the port side. They were wedged in place and the hoists hooked to them. These weldments proved the weak point. The 'hook' was a U-shaped trough bent of steel plate that was, I think, 5/16" thick. This was not rigid enough and the U started to flare out during the lift. If should've been built with external buttressing to make it more rigid and better wedged to the hull, or it should've been through bolted at the sheer, at least forward. This weakness caused some shifting of the fitting requiring the hull to be set down forward in mid turn to readjust things. (It was set on simple padding, e.g. boat cushions.) The slippage problem was aggravated by the difficulty of synchronizing forward and aft lifting due to the difference in hull circumference.
The other problem that occurred was the expected lack of lifting height. This was solved by a gin-pole to the keelson.
Overall, the turnover went fairly smoothly and lookie-loos were remarking, "I'll be damned, it's going to work."