The story could nicely be integrated in some other game mechanic skeleton. I would suggest not to point on the fact that handwritings in the journal belongs to main character (at least, that early), cause it makes you know where it all leads to. The sound and art is abstractly atmospheric, which in my opinion, suits the story.
But the story behind the development is more interesting. I wonder how the "original" game was like. Anyway, you guys did great on not giving up because of this situation. If I were you, I'm not sure what I would do. Good entry overall!