bkm: the only flyer was from Boscombe, 27/9/64, which would not have been in a Warton static display that summer. The 2 extant in Museums would not have been wheeled out on display summer 1965 after the cancellation decision of 6/4/65. Saudi Lightnings were ordered 5/5/66; 5 Lightning F.52s (ex-RAF F.2s) and 2 T.54s (ex-RAF T.4s) were delivered as lead-in July 1966, before 1967 new-builds. Maybe your visit was summer,1966?
sw: your Q presumes concealed "truth". This must be the most ink-consuming aero design ever: may I suggest a visit to RAFM/Cosford where their example is displayed with the avionics bay open. Vast, hot, as befits 1958 technology. By the time of its much-delayed first flight, miniaturisation/ruggedness was onway: BAC was then already scheming what became AFVG/UKVG/Tornado. At IWM/Duxford a Tornado is next to a TSR.2, which you will see is about as long as the adjacent Vulcan. It is just as meaningful to bemoan the death of this type as to bewail the demise of Super-Fury 1945 piston types, beached by turbine propulsion. Very good luck in finding something fresh to say.