Aligning the holes can be done by starting small and reaming with a broach pushed all the way through:
http://www.cooksongold.com/category_...y=broacher+set
There is this set of punches with hammer ending on ebay later today if its of any interest? I have a regular look out on there for vintage jewellers tools but this lot isn't something I need just yet.
https://www.ebay.co.uk/itm/Vintage-6...MAAOSwXj5au5mW
Hazel
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