I cannot recommend this guy enough: http://www.hampshirevehicledetailing.co.uk/
Paul is based in Sussex and can travel to you if required. A few years ago I got an old Jag XK120 DHC done with him for a serious overhaul after a poor respray job. It was a present to my step dad (the detail, not the car) and all I said was that I wanted to 'borrow' the car for a few days. When I returned it, he was reduced to tears at the difference. An insanely good finish and a lovely bloke to boot!!