With the door assembled and mostly flattened, it was time to fit it to the case.
I needed to take about a millimeter off each side, and still lacking any kind of vise on my temporary workbench rigged up a couple of clamps for workholding purposes.
I needed to run upstairs to check the fit a couple of times, and then hit all the edges with the block plane a couple of swipes.
And smoothed the faces with a cabinet scraper.
And gave my new purchase a workout: a much-needed small dustpan!
In situ. Time for a hinge, and to do some final smoothing of the whole case.