I am test building the Lunar Rover (from the movie "MOON") that was designed by Marco Scheloske (of http://www.paperaviation.de). The instructions are in German (unfortunately I do not speak German), but that is OK. The diagrams that illustrate how the parts go together are very good and quite straight forward. I have not have any problems following them. I have started with the wheels. There are 15 parts for just one wheel (and there are six wheels in all). As you can see there is a great deal of detail on the wheels that is very tempting to do. Since this is a test build, I have decided to forgo the detailing and focus on the testing the model first.