Here's your solution:
http://cgi.ebay.com/ebaymotors/ws/eB...spagename=WDVW
I needed a pump for my Legacy Touring (turbo) Wagon a little while ago and found this guy on eBay.
I don't know where he gets his parts, but they're new, original and his prices beat the pants off any of the dealers. It even includes the gasket!
Good Luck.
-Mark