Mailman 2.1.9 - Clone and Convert to MySQL database

We have a mailman server with pickle files. We want to copy this to another temporary server and convert it to MySQL database. We are moving to a different software and we need the mailman lists, members and archives in a format which can make it possible to import into the new software. We would not be able to give direct access to the mailman server or another. We would give access to our workstation, from which you can use FTP, Putty and Browser to do this job. This is urgent and we need this done right away.