Lovegrove Garages in Basingstoke have an amazing bodyshop and specialise in W113's.
They did my car down to bare metal and the finish is perfect. You can see pictures on Flickr (user Von Wolfsburg)
They are also very keen on price. At present they have 6 W113's undergoing various degrees of restoration, a member called Gav went to meet them last week and said he was impressed with the set up. They have, historically dealt with Ferrari and Porsche repaints but lately they have started a Pagoda restoration facility. Nothing to do with Silchester and a very skilled bunch of guys.
The boss is Phil Carter and his mobile is 07778 283935.
If you want to have a chat with them say Steven the barrister mentioned them.
I have no link with them financially !!