Boxster S Rotors badly gouged after "Specialist" rear wheel bearing replacement

[fooksm]

Has anyone seen this before?

The Boxster in question has new rear wheel bearings fitted and was out of my sight for a couple of months whilst having it's engine rebuilt and chips and scratches resprayed.

I now have it back, but with a grinding from the rear rotors (Not surprising when you see the photo.) and it looks as though someone has found a way of mounting the Brembo calipers about 1-1.5mm too far inboard, or the rotors were put on protruding 1-1.5mm further out than they should, which would be even more worrying. When I last saw the car, the rotors were fine and both sides are scored exactly the same, so whatever was done incorrectly, was done on both sides.

The rear bearing work was sub-contracted to a "Porsche Specialist" by the engine rebuilders as they, quite rightly, like to stick to their own area of expertise.

I'm about to order new rotors, pads and also steel lines whilst I'm at it and will take this opportunity to repaint the calipers whilst they are off the car but any advice would be greatly appreciated.