I cut the wall to ceiling trim pieces today, a bit scary that as the wedge wanted to slip under the saw fence, but I got it with the push sticks, installed them. I first used the green rabbet plane to trim down the one ceiling panel overlap to fit and a chisel to fit the notch overlaps, glued a couple panel squares in the open notches, smooth. It’ll still need some putty in the smaller notches.
I also installed the light, needed to drill new holes, brought the cord in for the drill so as not to have a hot line, it’s in and works. I used a chisel on the door frame and sanded it as the door was binding with the rain at the latch. Raven can repaint it black.