Several weeks ago, the staircase project was completed. First, the upper staircase had to be demoed, and was in a similar state to the lower staircase in that the stairs needed to be raised up with plywood before inserting the new treads and risers.
After that, the new stairs started to take shape.
Finally, the railing went back in, nail holes were puttied, and the bottom trim on the upstairs staircase was stained and wrapped into place. The finished project is really stunning, and looks incredible to go along with the hand scraped hickory flooring.