Thanks for the comments. OK so it seems I'm got the dealer to 10% in the end and could have maybe pushed for more if some are getting 12%. I've signed the order form already but not paid for a deposit yet so maybe still time to do something?
With that being said I got some great service from them, couple of test drives today, One in a manual Kombi which I wasn't happy about as I have bought a DSG, so we then took a vDSG van out afterwards. Even suggested I sit in their Caravelle to make sure the height is OK on the swivel seats. Just got the feeling he went out his way, and was very upfront about the current lead time going into beginning of next year!
I had in mind before even looking at the figures if I could get the exact spec van I was after for £35k+vat I would be happy and it's actually come in a few grand less. Fully loaded T32 Kombi 204PS, with all the extras, LEDs, Swivels, Sunroof, Twin electric doors etc, tow bar, etc etc