I am not sure, but transferring via IRC can be a solution?
OR
CRYPT the data, winrar with a complex password and do transfer via torrent(public tracker).
or
since he is ready for seed if the torrent transfer is secure.. in that case he and the reciever will need their pc ON throughout the process. Then instead, they can remotely connect via TEAMVIEWER , a remote desktop software. And transfer it through it.
or
Hamachi?
or
you can read this:
http://www.ethiopianreview.com/scitech/6745