944 S2 Brakes and Discs

[matara]

I've got the rear of my 61 Karmann cab sorted out, now for the front. I can get hold of a set of 1 year old 1990 944 S2 brembo calipers and a matching set of slotted disks. Can anyone tell me if these are a good candidate to fit a Ball joint beetle? I heard the S2 brakes are the same as the 944 turbo brakes, and they may be not the best brakes to fit to my car.

They dont come with any hubs? Will the newer disk fit on an older 944NA hub if all I can get is one of those?

Any idea how much of an increase in track these would give me?

Thanks

Steve
Sydney, Australia