Hats off to those magnificent men in their flying machines for braving the weather - a great line up and lovely pictures Peter.
That looks like a Provost nose behind the Hunter.
It is indeed, Jet Provost T4 XR650 a complete aircraft minus engine formerly DERA, and CATCS. The Hunter is a F6A, XF375 and the Comet nose in the background is a De Havilland Comet C2 XK699, named Sagittarius and the only part of a Comet 2 in existence. All other preserved Comets are the later Comet 4.
Peter