When I thought I might have to do a water pump I checked out the special tools too. For the clutch holder it's part #113589004000 and for the open end wrench bit it's part #113589000100, very expensive most likely since you can use a special torque wrenc with it. You can probably use the right size wrench so long as it's thin enough.
I found the holder at link below. The add reference the proper part number so it should work.
http://www.zdmaktoolhaus.com/wbstore/main.asp?action=PROD&PROD=MK-1714C&CTMP=1