Update- roof is on! Yay! No more leaking. They managed to get on the decking and tar paper before the bottom dropped out, so a full day of rain happened. Of course that leaked through everywhere, but it actually helped "demo" some of the ceiling in the office area. That is almost complete now- the ceiling is heavy! Metal mesh lath with concrete/plaster.
Looked over the bay windows again and had a 48-years of experience glass man come out and he said "no problem" so we're going to replace every pane of glass in all 6 of the bay/back office windows. And meeting with a glass company this morning to get measurements and an estimate for the office glass re-do.
It's coming along. Having it "dried-in" is a big help.
Should be getting interior and exterior pressure washing done this week or next.
Received my shipment of replacement (original reclaimed) roof tiles last week. Found a guy with 5 million reclaimed tiles and he had everything we needed to replace the tile roof. Now just need to find someone that knows how to install them....
And you guys are right- we're going to leave the patina ceiling