I had my local gunsmithing services provider perform this repair to my breechblock.
The repair pin occupies space within the breechblock that needs to be free for rearward movement of the retainer, so I reduced the retainer locking tab's thickness until the toggle would lock and striker would drop.
I popped a primed case to prove trigger/striker function, and will try to get to the range for a full test, and some pics.
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