One thing that I'm pondering about ...

If you're really bothered about that, once everything is mounted up
and the doors fit etc, drill an extra hole through the hinge-pin plate
and put a coach bolt right through to the inside of the building.

It's a bit overkill for ledged and braced timber doors anyway (unless
they're massively constructed), as they don't have the structure to
hold back even a moderately serious go at a forced entry.