how to use crx2oak (or any other tool) to migrate just content versions prior to a specific date?

1. Is there a way to get/transfer just the versions prior to a specific date?
2. I looked at crx2oak and it seems to me that both AEM repositories must be available locally. (example: I am able to navigate/see both repositories directories/files using terminal commands like cd and ls)
3. If no.2 is correct then that means both AEM repositores have been NFS/Samba mapped to a local folder. correct?
4. any other tips you want to share?

Thank you.