I'm concerned about a safe technique to release the high-pressure smoke. And about the correct mounting orientation so the electrons don't all fall out. Also the presence of enough sharp edges to ensure we get the modern Maker equivalent of sword dueling scars.
If the manual makes it too easy, we won't feel we've accomplished anything! Otherwise, what's the point of a kit?
Then again, we can always run the manual through a translator (http://www.rinkworks.com/dialect/ or http://funtranslations.com/) to ensure the manual itself presents a suitable challenge.