With what's going to happen in the next pages and seeing the "If I'm a pet I get lots of blah blah blah" line again, I can't help but think of: http://www.youtube.com/watch?v=M5QGkOGZubQ
When uploading a hard translation, make the raw image the parent post.
When adding a hard translation to a single pool dedicated to the series, give it a ridiculously high number such as 101 in order to provide room for additional raw images that may be added.