I've downloaded the file from http://model.icegroup.ru/main_en.phtml?page=model and start now the building of the model wich seems attractive and very detailed. Here's a report and some pics. I want to make the front window transparent. This makes the building of the ball really more challenging. I'll have to fix interior details too. The solar panels are a problem as they have a tendency to warp when they are glued on a cardboard plate, even after having dried flat two days under pressure between two thick dictionnaries. The quality and the rigidity of the cardboard plate is critical during this early assembly.You have also to decide if you are agree with the structural lines drawn on the dark panels, compared to the studio model details. Structural details of the solar panels have been just glued on thick paper to make raised details more consistent. Let's hope that gluing them on the main part will not cause more warping.