When my grandfather Smith's grandmother, Janet Blair, lived there in the 1840s the old stones were largely ignored, although I was amused to read a quote from one parish minister complaining that his parishioners touched the stones before they entered the church. Janet's family lived in a tiny village called Kilmichael Glassary that's up a small valley that branches off the main Kilmartin valley. When we were in the village a slate roof was being replaced. I don't think the safety regulations are the same as ours.
As a teenager Janet travelled to Victoria by herself on a ship called the Ticonderoga, famous for being the ship on which most passengers died on the voyage to Australia. Hundreds died of fever on the voyage and after the ship was quarantined at Sorrento. Janet worked in aguest house in Collingwood and met John Hillgrove there when he came to Melbourne for a break from the goldfields. John and Janet selected land in the Wimmera and later the Mallee. The wide open spaces of the Wimmera are very different to the small fields and rocky outcrops of Kilmartin valley.
The Blair family also lived at Kames, a narrow strip of land behind a beach north of Lochgilphead. There are a few houses there now but they aren't crofters like the Blairs were.