ctyankee
Burning Hunk
The company won't give you access to the pictures? Many people aren't concerned with preservation, but this chimney is an integral part of the heart of the house. If it is torn out and replaced with some prefab, the house will lose a lot of its "feel" and integrity. And you'll know it. I would be advised by the "experts" to rip this unlined stone chimney out and put in a prefab. At the cost of God knows how much. I don't think so. Anyway, good luck with whatever direction you go.