LOL, a *LOT* of documentation for kit models and many other things - like some computer stuff gets really bad docs.
they hire out the transaltions and they will often have many small errors depending on what the first language was and how it is re-translated by different people who may not be really qualified to do that job.
if you really want to get it right just view the doc as a general guide, honestly i think you need to build at least two or three ships before you start to really understand them and then you will need more from the blueprints than from any manual.