I have a decent server doing pretty much nothing, sitting on a link with a couple hundred Mbps of available bandwidth. If I can find a command-line BitTorrent client and figure it out, I'll help seed as well.
It's not command line, but it has a nice web interface: transmission-daemon.
Yeah, I was surprised when a torrent wasn't available. This also seems like a perfect use case for http://burnbit.com/.
burnbit is choking on it. Looks like 15G is a bit too much.