Paul, ordinarily I prefer not to discuss speculative completion timelines for major projects including #10. But can I say that regardless of the progress on #10's smokebox, the rest of #10's boiler will not be ready for the summer. The bulk of the work still remains ahead of us.
I am generally planning on making progress on #10's smokebox this winter/spring. This will likely include rebuilding the squeeze riveter to rectify some issues we've had with it, making our own rivets for the non-code work, and performing the actual riveting. And all of that will fit in between photo charters, crew availability, and other shop concerns. We're just going to pick away at it as we can.