Putting out the feelers for this as I have one of thse in the UK, sitting at Revolution in Gateshead, in its box complete with fittings for sale if anyone is interested. I am going to different route on my RS3 and only looking to recoup the cost I paid for it so there are no overseas shipping fees or import duty to pay for the person who wants it. If you are local to Newcastle upon Tyne I'm sure the Gents ant Revolution would also organise fitting it for you.
Please PM me if you are interested in this. Details can be found here;
034Motorsport Solid Rear Sway Bar, Audi TTRS & RS3, Adjustable - 034Motorsport | Performance Parts for Audi, Porsche, and Volkswagen