The ends of the crank arms are proving to be the most difficult and require the most work. I can't wait until I have my new Foredom flex shaft tool to take a one more bit of manual labor out of this process.
The first two cranks are coming along nicely. I think some more bench time to finish cleaning up the ends and some other local imperfections and tonight I can try them with the finer ceramic media to attempt a polish finish.
Little more work required on the non-drive side arms.