As each part of the manor was completed (I checked the workbench to see what could be made) I removed the workbenches. Everything got finished except the 2 Large safes in the cellar. A couple months in-game have gone by and still no safes (their option still shows up on the bench).
Are the safes something I have to make myself or will the steward eventually have them added?
EDIT: I noted that none of the shrines are being built on their own either.