Pinion Oil Seal leaking: Need help with the right tools

[Edmond]

Okay this is the problem: I have a leaking Pinion Oil Seal. It's not leaking much
but enough to make the underside of the bed pretty greasy.
Anyway this is a job I just can't do my self, so I brought the truck to my local garage.
They couldn't do the job because they didn't had the right tool to remove the nut that holds the oil flange.
They tried everything but did not succeed.
Is the special tool (as mentioned in the 1971 Service Manual on page 4-27) available to buy?
Or can anybody give me an alternitive on any other tool they can use?
Remember, I'm in the Netherlands, so I won't be able to go to Autozone or anything like that very easy :p

Any help on this is much appreciated.

Cya,
Edmond