Answering the question about how to organise a roll recut -- just ask
somebody who has a perforator and offers perforation services!  They
know the way things work.

In my case, if there is an existing scan of sufficient quality I can
use that and I don't need the original roll.  If there is no scan but
the original is available it can be scanned.  I have a scanner and can
do this, and can discuss with other scanner owners who may be better
located.  To do this properly requires an original roll (not an earlier
analog recut because they aren't accurate enough).

I'm based in the UK where "mechanical rights" last 50 years from
publication, so I can copy pretty well all but the most recent rolls
without reference to the original recording/roll company.  And, of
course, anything newer than the copyright holder gives permission which
may well be given for rolls not in production, even if the company
still exists.  Indeed, the USA/EU difference in copyright is a key
reason that much reissuing of old recordings is done in the EU rather
than the USA.  EU composition copyright lasts 75 years from death of
the composer, though.

Julian Dyer