As Alistair says, there is the one he mentions (near Mansfield), the guy is looking for £16k - it is unregistered and not officially listed for sale anywhere, but we do have his number. He basically just imports cars then sells them for a 50% markup without doing anything to them.
There are all the cars on here:
http://www.deloreanclub.uk/deloreans-for-sale.htmlAnd there is this one:
viewtopic.php?f=56&t=4310 - which is not officially sold yet, but I think you will have to beg him to sell it you - there was at least one guy seriously interested but bought another one just due to lack of contact/ability to look at the car I think. It could also be sold, who knows?, but no harm in asking.