None were broken so I decided to go ahead and set them and try the dry hatch method. The eggs are dark blue and difficult to candle, but I determined one was a definite dud on day 7. That got me down to 11 eggs.
On day 14 I could only see a few that had movement and the others were dark masses, so I took a chance and went into lockdown with all 11 eggs.
This morning (day 20) I noticed one egg had pipped. It's pipped a little more since 7am and the chick is still chirping. Hoping to get several more chicks out of this clutch, but I have no idea how many were actually viable at lockdown.