hmmm...
Come to think of it, Hatou of animal office (see page)
http://www.yomogi.sakura.ne.jp/~hato..._o_f001-5.html
has been trying to make a game somewhat similar to this for a very long time now. It might be a stretch, but you may want to talk to him and see if he would be interested in the very least.
...I don't know, just a thought...back to lurking.