At least 30 footnotes, no plagiarism, level of a 2:1 at a British university, Using UK English, word count does not include bibliography  or footnotes. May include images as well.
A keen focus on analysing the book is required, the form and function of the book, e.g the fact it was translated originally from German are vital to bring into the argument. You are allowed to focus on one chapter as long as specified in the introduction to focus your argument. The less wide and more focused and concise the writing the better.