I can recommend an awesome bodyshop in the Sheffield area, They have carried out work on my friends concourse Corrado VR6 and on his other show quality Nugget 16V Corrado also.
They have also refurbished/painted a set of very rare Hirsch Performance alloys I had on my previous car which was a Saab about a year ago, Did a fantastic job on those for me.
Not the cheapest by any means but I am very anal as is my friend who's Coraddo VR6 has won pretty much most of the Concourse events in the U.K for last 10 years.
Called The Bodyshop funnily enough and are located on Rutland Road, Tel 0114 279 5234 and ask for John.