Bud
Many thanks for your thoughts about our request and welcome to the site, but we have already talked to Brands Hatch M and they use a local Porshe garage for their spare/new cars @ £25 per week! Rather rich for us I'm afraid. Also not sure about going downmarket in garage terms. One has certain standards, after all. Toughness to withstand leaks, wet knees, draughts etc and frustration when we can't catch the blighters.
John