The redrilled discs turned up today. I fitted them and for the first time the car is now rolling on all 4 Porsche wheels. The clearance on the front wheels is pretty good and there's no fouling on the inner wing with the steering on full lock which used to happen with the stock wheels.
When I get around to fitting the Porsche hubs the track is increased by about 10mm
I've added a few pics to the gallery.

