That's pretty cool, thanks for sharing! Been a while since I tried it out but last I looked Tribler's own automation features were quite lacking so something like this helps a lot.
I was not able to download anything with more than 1 hops in between - ie it does hide your real IP address, but only uses one relay in between.
Hmm I don't think there's any relays at all in that configuration, unless you're counting the exit node itself?
One thing to keep in mind is that to download torrents from outside Tribler's own network you would need to download through an exit node.. not sure on the exact stats but last I tested exit nodes were only like 5-10% of the Tribler user base. For a while I tried volunteering my own VPN connection as an exit node for Tribler just to see how it went but the Tribler client kept locking up/crashing after a few days so the experiment did not go well.. hopefully works better nowadays.