I'm thinking 12.00 as it gives me a couple of hours at goodwood and enough time to get back. Then set off at 13.00 for the anchor at wisley, got a nice twisty little route to get us there lined up.
I've put the route for the mini-run between Derby Arms and the Anchor on to the tom-tom so I've got an .itn file ready, so if you want a copy PM me with your e-mail address