Most will already know, but for those that don't...
There are 3 shows that are coming up over the next couple of months, that always seem to have a good amount of cars for sale, so good hunting ground for a decent MK2, so a bit of Googling, and a bit of traveling, may turn up trumps for you

1, Edition 38 AUGUST 31ST-2ND SEPTEMBER, OVERSTONE PARK, Northamptonshire, NN6 0AB
2, Players 6.0 SEPT 16 2012 North Weald Aerodrome, Essex, CM16 6AA
3, Westside SEPT 23 Chalfont Park, Chalfont St Peter, Buckinghamshire SL9 OQA
If anyone knows of any other shows etc, can you copy the list, and paste the event in

Thom