They say it has to get worse before it gets better. Of course, the floors were basically all rotten, with the exception of the hardwood beams. So now we don't have any more floors!
Our builders discovered that the midlevel floor had been built over - essentially a new floor had been put over the old one. They had to remove two levels of flooring to get to the original beams. Before this midlevel will be rebuilt, Jim will pass plasterboard up for the new walls in the bedroom and attic. Otherwise, it would be difficult to get the larger pieces up there, as the stairway is quite narrow and twisty, and the upstairs windows are high off the ground. Glad he is thinking ahead!