Actually, here's the one you are looking for...
http://www.vwdiscountparts.com/partl...catalogid=5496
I know it says its for a VDub but if you read carefully it says it comes in Valley Industries packaging which to me means its the Valley Industries part and not VDub specific.
I also read on one of the VDub forums that you can call etrailer.com directly and if you ask them about the part they have it (even though it doesn't show up on their site). So, I'd try them first since they typically have the best prices...