I use a company called Sweeny and Sherlock in Birmingham,
Stephen has seen the quality of their work on a set of A610 wheels I had done,
All in £200 the set and that includes the centre caps....... powder coated in silver, not paint and laquer which doesn't last.
you can choose different finishes if you want but that bumps up the price!
their buisiness is powder coating and they do wheels as a sideline, they will only take on curb damage at the worst but if your wheels are buckled you should scrap em anyway!
www.sweeneysherlock.co.uk