So... the insides of the box, as well as both sides of the top and bottom panels, are finished and waxed. The box is ready for glue up. One of the nice things about doing a box this size is that you can tap the dovetails home and basically be done with it, rather than fussing with clamps and cauls.
After the glue is dried, the sides are cleaned up and and planed. At this point the box is still one closed unit. The next step is to saw apart the lid and body. I prefer to use a handsaw for this operation (as opposed to a tablesaw or bandsaw) because it leaves a much thinner kerf. This means that the grain will have less of a "jump" from one section to the other, and more importantly, I can saw through the middle one of the dovetail pins (which was intentionally cut wider than the other pins), leaving a half-pin on both sections. I make the cuts themselves very slowly, rotating the box to a new face every few strokes.
Here is a detail of the split-line separating the lid and bottom of the box:
The box is split open. It is hard to tell from this picture, but there is a shallow groove cut into the inside of the box. The groove was spaced to correspond with the split-line, so that when the lower half of the box receives that lip, there will be a matching rabbet in the lid to accept the lip. This is all much, much less complicated than it sounds.
Gluing the lip into place.
The first coat of oil on the exterior of the box.
Three coats of oil and two coats of wax later, the box is ready to be packed up and shipped off to its new home.