Rigga
G-RWWW as the MK12 was registered in civvy street, enjoyed a few years on the display circuit mid nineties in the capable hands of ex Bristows Derek Jones. Aircraft now retired and residing in the helicopter museum at Weston.
Also there was a piston powered version (HAS Mk.7, XK940 I believe) lurking in a hangar at Redhill about the same time, when the time came for its journey to Weston i seem to recall that it managed to place itself on the back of a low loader. Wether this could have been the last flight of a piston powered whirlwind or a ground run that got a bit light on its wheels I will leave up to you.