Not had a chance yet for a proper site visit round the back, so thanks for these pix, Gaucho.
Re accessing aerial photos, do you mean the NCAP database?
Not directly related but here is a nice 1867 photo from Virtual Mitchell showing villas and grassy slopes on the north side of Sauchiehall St, pre-sunburst building, on Virtual Mitchell. Not sure of the coordinates, but looking towards Charing X. Suspect it's east of the site I'm interested in, just posting because it's such a startling photo.