Here is the soundboard, with the bridge attached, resting in the case.
Closeup of the treble end of the bridge along with the molding that will eventually be glued to the edge of the soundboard. Things are really tight here and there is only 2 or 3 mm of clearance between the end of the bridge and the molding.
Closeups of the bridge after inserting the bridge pins.
There are four "ribs" glued to the underside of the soundboard to stiffen it - here is the second one being glued in place.
I also started the work of trimming the lid and flap to their final size. The flap needs to be big enough for a large cat to stretch out and go to sleep on it.
I trimmed the curved part of the lid by clamping it to the case and using a 1/2" router bit with an oversized end bearing to leave a slight overhang. Fortunately this is an easy cut to make from above because you are cutting with the grain of the wood. There were, however, a few places that needed to have almost 3/8" of wood removed so I made three passes over it using progressively smaller bearings and finishing up with a 7/8" bearing which left an overhang of about 3/16".
Here is the lid with the flap resting on top of it in the open position. I went to a lot of trouble to get both the flap and the end of the lid perfectly square so that when it is folded back like this the edges line up perfectly.