I put the decals on. There were a lot. It went okay. The wraparound ones stretched surprisingly much, given how careful I tried to be not to pull too hard on them, so the carefully measured length failed to match the diameter after all. No one will ever notice.
I was thinking about how to check the alignment of the decals from end to end and came up with a solution I thought worked pretty well. I took a piece of string, threaded it through the nozzle of a spent E motor casing, and tied a stop knot so it wouldn’t pull out again. I put the casing in the motor mount.