Looked at http://www.lasercleanall.com, but couldn't find any prices.
I suspect they won't be cheap, though...
Just looked at that website again, and it's from six years ago. Maybe too expensive to take over from grit/sand blasting yet...
This forum is for Midas and Midtec Bronze enthusiasts. The Midas is a British car designed as a replacement for the Mini Marcos.
http://midasownersclub.co.uk/forums/
http://midasownersclub.co.uk/forums/viewtopic.php?f=41&t=1984