@Nozistin, you may have seen this already in the application itself, but WWS indicates that the SoP "should not exceed four double-spaced pages (11 font or larger)." Also, to answer your other questions - I am combining certain aspects of my HKS essays to write my SOP for Goldman. They're asking for the same information, what are you interested in, why you're interested in that, what have you you done to get there, how the school will help you get there, and what you want to do after. Obviously, I'm editing heavily in order to make sure things connect well and flow. Also, I am using a large part of the SOP for Goldman to address the WWS SOP, just tailoring it to the specific school.