VW/Audi tool source?

[mark]

Hi.
Was wondering if anyone on the list could direct me to where I could
purchase the Audi tool required to remove the fuel pump on an '89 Audi
100. I believe the VW/Audi Tool # is 3087.  This would be the
specialized tool used to spin off the top access port on the the fuel
tank to gain access to the pump inside.    Also, "ballpark" what the
tool might run. Any information provided would be greatly appreciated.
Thanks in advance.

Regards
Mark

'90 V8
'89 100
'87 5KTQ-CS
'86 5K-CS