You should call and see if they'll do a longer shop tour to let you set up cameras, etc. Might be too busy on a weekend. A couple of us went on a weekday a few years ago and they let us spend about an hour and a half in the shop. Tough light, but the most fascinating part of the place, in my opinion.
Also, not far from there (maybe a mile and a half) is the warehouse for Olde Good Things, an architectural salvage company based in Manhattan. Lots of fascinating NYC artifacts, and a huge yard filled with old gates, stone columns, etc. The folks who run it are very nice, despite apparently being a supposed cult (yes, really).
I might be able to make it.