[urq] Audi / Westfalia detachable towball wanted

[Newsh at aol.com]

Hi all!
I have just fitted an Audi OE Westfalia  towbar on my S2, I'm using the 
detachable towball from a 200 which makes the  ball sit too low. The 200 ball exits 
below the bumper and the Coupe exits a few  inches lower, below the skirt so 
the ball sits about 5ins too low. I've got some  height back by fitting the 
trailer hitch to the underside of the trailer spine,  I'm only towing a 
motorcycle but its not ideal. 
I imagine if this type of bar was used on the ur the  towball might be 
compatible with the S2 as the ur has a similar bumper set  within the skirt 
arrangement.
So I'm looking for the correct ball for an  89/ B4 style car which has a 
longer swan neck.
I have pics of the 200 ball but not the correct one so  if anyone even has a 
pic that would be helpful.
 
Are these perhaps still available for sale  anywhere?

Thanks 

John