This forum seems to most nearly be appropriate for the following:
Nathaniel J. Holmes, of Primrose Hill, London, had the Brycesons build a 4-manual, 65-stop for his home in the 1870s. Enlarged in 1936, it was re-located to St. Peter's RC, Buckie, Scotland.
NPOR says that St. Peter's shut and was converted into flats, but says nothing about the organ.
Does anybody have any idea what happened to it?