Thanks everyone. Saltydawg, I can't imagine the whirlwind that experience must've been. How neat for the baby, though--coming into the world and straight to the water. I hope it was more fun than stress.
It has been a very long forty eight hours. I know enough not to count my chickens before they hatch, and as I posted night before last, I'd indulged in only cautious optimism, but I never saw this coming. After verbal agreement and plans to finalize in the morning, the seller got cold feet.
Apparently it was a very emotional decision. My partner was a patient, diplomatic champ on the phone all night and morning. With success after daily boat searching for more than six months, I felt like an adopting parent whose surrogate thinks she wants to keep the baby.
Yesterday morning, many phone calls and much hand-wringing later, the owner decided to honor her word. You can be sure we jumped out of bed bleary-eyed, pulled on whatever clothes were in reach, and raced to South San Francisco before the tide changed again.
So... I am now the proud and happy owner of a full keel 1965 Buchan 37! I slept like a stone last night.