This plugin is very simple and aimed for seedboxes (or people with high upload speed) (self-tested on windows with deluge 1.3.3 and deluged/webui).
What it does, its some kind of ratio, but instead of working with downloaded/uploaded normal ratio when torrent is SEEDING, it works with TOTAL SIZE/uploaded on torrents when DOWNLOADING. I do this mainly for a private tracker i use, which only allows uploading 8x copies (aka, torrent_size * 8), more than that = BIG penalty.
USES:
-Since ratio limit doesn't work while torrent is Downloading, if you upload faster than download, sometimes you upload like 16x the original torrent size, which in some trackers, can get you banned/warn, this plugin prevents it.
-If you only download a few files of a torrent, and want to re-upload them, put download limit @ 1kb/s, remove ratio restriction, and let it work (you can do this by recalculating ratio settings for that torrent i guess, but well

DOWNLOAD (code inside)
Check attachment
OPTIONS:
-Number of copies (maximum amount of copies before upload gets limited, put it a little lower than tracker limit, since this limits your upload, doesnt disable it)
-Minimum file size (MB) (torrents which are less size than this, wont be affected by this plugin, i think this setting needs to be a little higher than desired, for example, testing with a 41.1gb torrent, 42000 wouldnt be enough, with 43000 it stopped being affected by the plugin).
-Upload limit (kb/s): Upload limit which will be the used one when torrents reach number of copies.
WARN:
This plugin is not a workaround for ratio limits, since it wont affect torrents in seeding state (only affects downloading ones). So after you are seeding, use ratio to limit your upload (if you downloaded full file, ratio and this plugin would do the same, but you can configure ratio for each torrent individually, so better use ratio).