Feel free to get in touch. I can put you on to the chap that mine came from.
If you look at the pictures on page 8 of when Chris first did the car, it's on standard height suspension and there's plenty of room in the arch (too much for my taste which is why I had the lower coil overs fitted)
Not sure what sizes are available in 17" but mine are going to be standard front size all round. The original wheels and tyres were larger on the back but changing them will only upset the speedo reading by less than 1%.
These came the other day so hopefully the Campagnolo stickers will help the 'period alloy' look of the wheels.
Cheers, Bob.