Hi Wiz
You must be very proud to have a Father named John Kemp, He is one hell of a guy, I am so pleased to know he is still alive and kicking (sorry for the earlier mistake) If I remember right did your sister also work for TAF.
Regarding the post by mushroom man, the only bonneted F12, I remember was owned by Brent and driven by Nigel Key (Kiwi) but not from New Zealand, that would have been around 1980.
All the very best RDF