You are the expert here and I know I am not, but I would also consider that you might have to leave the boat due to a sufficiently-serious mechanical failure, hole in the hull, or fire.

In your shoes I would add a locking folder, a way to charge my phone, and some snacks to my EDC. A PLB would not be a bad idea either.

Do you have a route that does not go through the metropolitan area, in case that became important?