Stephen,
For the studs go to Bildon www.bildon.com they have very nice ones at a good price.
As for the spacer 25 mm seems huge. You will probably be way past your legal track width, adding 50mm total to it. But Bildon does also cary wheels spacers.
Sam

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Sam Rolfe
TBR Motorsports
#85 ITC VW Rabbit being converted to LPHP
#85 GP Scirocco

[This message has been edited by SamITC85 (edited May 06, 2005).]