Hi guys, I'm located in SoCal. I have a new in unopened box set of KW V3s and the part number is 35220050. It's listed for 2006-2007 Mini Cooper. I can't be sure if it will fit your car but the best thing to do is go to their website and see if it does:
http://www.kw-suspension.com/flexshop/
Retail is $2150. I prefer a local buyer in SoCal and will let them go for $1700. If nothing happens locally I will consider shipping. PM me, thanks!
EDIT: Part number shows for 2007-2008 Mini Cooper. I think they are supposed to work for Cooper S too, need to check with KW.