I removed the button and pockets. I carefully picked out the dart seam on one side and the front edge seam on the other. Then I inserted a zipper on each side and resewed the seams. It was a little more involved than that makes it sound, but yeah, not terribly difficult.
I decided not to do anything permanent with the slightly-too-short sleeves just yet. I like the casualness of the cuffed sleeve. I think it complements the style and fabric of my new jacket.
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