3D model of a series of compound curves

If you don't have experience working with compound, 3-dimensional curves, do not bid. I need a 3d model (not photo rendering) of a closed series of compound curves, similar to the one shown in the photo-rendering here. I don't need the suspension wires or ceiling plate, etc. Only the curved band. Note that the series of curves is 3-dimensional, and not on a flat plane. Think of it as an artful roller-coaster. All curves and transitions must be graceful and organic. Not angular. see other images for dimensions. Note the width of the ribbon must vary between 4-inch and 6-inch, while maintaining graceful, organic curve transitions. If you prefer to work with 3dsMax, please be sure to be able to export to SketchUp for me. This project will open the door for more phases of this project, as we will eventually need 9 or 10 additional compound series of curves - all will be unique, not copies. To show that you have read this, kindly include "compound curve" in the title of your bid.