Nice work mate. I'm a big fan of Audis, and have owned a couple of S3's before, one 8L (2002), and one 8P (2008).
I'm assuming for this price you're looking at a later model (facelift) 8P.
If that is the case, I'd urge you to consider a pre face lift one (2007-2008 instead of 2009-2010...