There is one way to find out where your nearest local builder and parts supplier is and thats to use this thread, not sure it been updated lately maybe because it's been forgoten about but you never know.

http://www.haynes.co.uk/forums/showt...uild+locations

As far as racing is concerned Saturn supplied a chassis and all suspension arms etc and I built a car to race for Teamtrain using a G20 Ginetta donor that uses a type 9 and zetec on injection with quaife box and diff/lsd.
It was raced last year in Northern Sports and Saloon's and fairly competitive.