Sounds like a second job.

Only a job for your PC, it just needs to shovel bytes.
You only need to download a few popular torrents and seed them for some time. Some trackers count score for certain torrents differently, like if almost no one is seeding them anymore, or if there is a high demand. It is probably marked visibly when they do that. I don't think it requires much work, and probably it's fine too if you only deal with it every few days. Just keep the torrent client running and seeding, at it'll be fine. Unless you don't use your computer much, it's enough if the torrent client runs while your PC is on, but under a few hours a day I'll build up slowly.