Tool to hold crankshaft pulley

[indestruktable]

Picked up a 740 turbodiesel with 210k a while back. It's actually in half-decent shape, considering what I paid for it, and I love the uniqueness of it.
I was looking through the monstrous stack of service records a few months ago and noticed the timing belt was last done in 1995!?!?!?!

I haven't driven the car since; I'm sure that thing is ready to snap.

I have the green book and access to every tool I need to do the job except for the tool that holds the crank pulley. I can't find one anywhere. I've checked with Tasca, who show it as available but can't get it, and my local dealer, who says the same.

Is there any way I can do the job without this tool, use another tool that will work, or make my own tool?

Any advice is appreciated, I want to drive this thing!