Setting a Hollow Pin

[Citroënbender]

I’ve got four of these to do, they’re window regulator guide blocks:

The back of the pin is heavily counterbored as shown, the receiving hole is not chamfered at the exit side.

I need to make/adapt a tool to set these pins very solidly. Thinking of using a vice with appropriate tooling, to progressively deform the piece.

Would I be better placed to form a bevel on my “setter” or a domed end? Dry or greased?