Spoke to the cemetery office recently. No further information on the Scottish Burial Grounds research.
The cemetery had some students on summer programs for a few years doing marker cleaning and repairs and also excavating the Scottish markers. That funding dried up.
They had found some of the documents related to the move in 1955 based on a post made to the Cemetery web site but now the document(s) location is again unknown.
I'm sure not a high priority for the few staff members they have doing day to day business.