Welcome to the forum Wayne, I hope you find the car you're looking for.
There's was a 2006 4.2 TDi for sale a while back, Duff3103 was selling his back end of July. His post hasn't been updated since so I'm not sure whether it sold or not.
His post is halfway down this page if you haven't already seen it
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Audi D3 S8 - 2007 - V10. B&O, Phantom Black, black and silver interior, and still completely standard with everything working as it should
Audi TT - 2015 - Ultra