I got one about a month back from a US seller on ebay, think it worked out at about $229 including delivery (£146) then i had to pay £16 import tax so all in all it worked out at about £162. Its great quality and it comes with a detachable number plate mount, as I know alot of them are fixed, all RS4 Emblems were supplied and the Audi badge. Cant recommended the seller enough.
dubstopimports is his username, just have a look at his store if you get the chance, id link you but im on my phone and the ebay mobile sites being a pain.
My avatar is the exact one from this seller.
Hope this helped!