I've only just noticed this thread.
During the early 1970s my late father was a member of the Cambridge University Gliding Club and stored his Kestrel 19 at Duxford.
I distinctly remember a Liberator there in 1975 that was paired with the B17 Sally B.
It was an ex Indian machine and was refurbished in natural metal with black fins with a central vertical white stripe.
A photo' appears on page 67 of Action Stations Vol 1 by Michael J F Bowyer.