The lid is on. So is the fallboard, though it wasn’t at the time of the picture:
Don’t worry: the lid is straight. It’s the optical illusion of photographing it against the full scale drawing with so many parallel diagonal lines.
Immediately after this, I was instructed to remove the screw eyes for the lid cord and the lid hinges, and put them all back in their envelopes. I get to put them back on at the very end when everything else is done, but between now and then they’ll just get in the way.
Next up: finishing the case.