Board Thread:Questions and Answers/@comment-4436775-20130906045811/@comment-4748654-20130909205157

Um, sorry but I can't help you here.

Well, perhaps the only way to acquire it cheap would be to download it from YouTube through some audio downloader, and thus get the whole soundtrack for free. But I believe you're looking for a physical copy of the OST, so I'm afraid I can't help you here.

Sorry :/