Hi Tom,
Thanks for the note! Lars just had a baby boy, Olin, and they are all doing great.
What you describe is very helpful, and is roughly how I would do it. I might just leave in the current floor, as it is fine and recently redone, making this the new sole. Maybe she will float again!
If anyone wants to see pictures, click the links, but it is not pretty, so be warned!
Destroyed 20
Destroyed 20a