What piece is this that needs to be replaced?

It's a car that a neighbor of mine is thinking of buying and this is the main linkage shaft that runs from the bulkhead to the linkage array on top of the cam cover. How difficult is this part to replace and is it a used only part or dealer? It looks like the rubber bonded part has separated from the metal rod and plate.

I am not familiar enough with 123 diesels to have a handle on what's involved to replace this part. it's possible we will try to replace or repair the linkage so the car can be driven about 100kM.

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punkinfair