I think we now have a good team in term of balance design.
Proofreading is a bit more complex, since managing a team of multiple proofreaders will be a huge pain. We need someone to be in charge of things (or at least one person for 2 or 3 areas of proofreading).
I remember someone contacted me on Skype and told that he's an experienced text editor, but I completely forgot who was it... tried to search message history or everything, but couldn't find him. Maybe contact me again if you're still interested, and can see this message?