I bought the full thing, it’s pretty damn good. Nausicaa is definitely a bit of a Mary Sue, and we get a solid dose of Mr Miyazaki’s typical ecomalthusianism, but aside from that it’s a very well constructed story. It somehow ended with a compelling message. There’s a lot more airship flight than the film, and it goes a bit more into detail about the nature of their technology, so if you’re an airship buff like me you’ll probably like it more than the film.
Also there are newtype powers.