The bed skirt beast was tamed, finally, late last night. Here's what it looked like as I stitched the last side. Followed by more measuring (MATH), ironing, trimming, and hemming.
But even if I do say so myself, didn't the corner pleats come out nicely? My daughter and her husband didn't want pleats along the sides, so I needed to hide the joins somewhere in the pleat.
The couple were very grateful. They promised not to change their color scheme quite awhile :)