A neat solution indeed, but for anyone capable enough to setup what you've concocted, why not just scp the files on a lowendbox.com VPS. You also benefit from a

A neat solution indeed, but for anyone capable enough to setup what you've concocted, why not just scp the files on a lowendbox.com VPS. You also benefit from an intermediary with a decent up and down connection for the person you're sending to.