The Marham Valiant was also a film star in its own right - it acted as the 'Badger' in a SSVC movie about air defence. Complete with surly looking 'Russians' in leather helmets peering out of the windows pretending to look at the F4 which had just intercepted them.
I had a good look around the Valiant when doing the AAR introduction course at the AAR school; it was indeed a lot roomier than the Tin Triangle!
I wonder which Arfur Daley managed to flog the engines as 'nice little runners, squire, fully reconned by Rolls Royce' to the Swiss?