A path that works on many cars is to start with
http://www.car-stuff.com/store/?N=0...urn+SL1+Steering Wheel Installation Kit+Grant
adapt with:
http://shopping.rexmar.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=steerhubmomo
and use a
http://www.ltbmotorsports.com/ltbquicrelsp.html
Personally, I'm not too hot on having 15 bolts in single shear (3+6+6) but we all have stories and documented proof of the successes and failures of both weld and bolt-on applications. whatever path you choose, do it right, use a professional if you aren't sure, and don't cut anything OFF of the stock shaft and you'll be safe AND legal.
and I agree with Christian - moving the wheel back is often desireable. (on our prod car the shaft is extended 7", the seat is back ~8", and the pedals are back ~3" from stock. makes for a great seating position.)