I signed up for Ballad-L a few days ago, and have been reading the current posts, but I'm afraid I can't add anything of help; all I did was quote a note from Buchan's "Book of Scottish Ballads" (1973); he referred to "...the Charles Kirkpatrick Sharpe transcript at Broughton House, Kirkcudbright, of the MS. entitled in the Scott transcript "North Country Ballads"  He makes no further reference to it, beyond an acknowledgement to the (unnamed) Curator for the text of "Craigstoun": presumably it's still there, anyway.

Malcolm