I need a few relatively simple 3d models

Job ID: 35441763

Budget: $15 – $25 USD

One 3D Model needs to show a twisted railway (like a roller coaster), on which solar panels are placed.
Another 3D Modell needs to show in detail how the twisted railway looks specifically.
The 3D Modell doesn't need to be nice looking, and the dimension aren't important, only the principle construction idea must be recognizable.
Related categories: 3D Modelling 3D Design