To those wondering why I'm doing chapters that have effectively already been done, it's because this is my first time doing any of this. I've never translated, typeset, or redrawn manga. For the most part, I'm a horrible artist.
Picking up and improving upon an existing series means that if I sucked at it or hated it, I could bail without feeling too bad, whereas if I jumped straight into the series that I have my eye on (one that's been abandoned for a while and has missing chapters in the middle) then there would be a lot more to lose and a lot more people to disappoint by giving up.