Guys - I managed to kerb a Monza a few months ago, and been to the people I usually use, Wicked Wheels in Crawley, who have a large unit with all the goodies, but they simply refuse to do the work, as they say they cannot guarantee the lacquer will stay on for any length of time on this particular wheel - and these guys can do M3 wheels and Jag XKR wheels!
If you have any better luck finding someone reputable who thinks the lacquer will stay on, let me know.