One other way to migrate the files would be to install the Samba NetWare NLM, and then copy the files using smbfs from the Samba server (if it is running Linux).
In all cases, it would be necessary to make certain that the files and directories created on the Samba server offer correct access control permissions for your users.
What are the pros and cons of doing so? That's a tough one! I'd set up a test bench and check this. It has been a long time since I migrated any NetWare systems to Samba.
This was first published in May 2003