the purpose of the anime was to create a board game advertising property in the japanese market.
the manga never got an english release because its usefulness for advertising board games is not needed, as the board game market in the anglo=sphere is MASSIVE and doesnt need media support.
i have some ideas you could try. Take the free bookwalker scans and capture them using lightshot (a FREE screen shot program) then put them through whatever translation service you were going to use.
it really hurts my heart that I might never finish this series when i have become so fully invested into the characters, especially Midori. Please someone please, finish this series. I am also a lover of these type of board games so my appreciation of the story is multi-leveled.