Had some time over the weekend to make some more progress. The combination of fretwire that matches the slot width, combined with a proper fretting hammer (seen in the first photo) made this probably the easiest fret installation I’ve done so far.
And here’s after they were all in:
I filed the ends flush with the neck, and have started to dress the ends. You can see that frets below the 13th are still square and sharp. This is just a first pass; I’ll go back and refine these later.