I am trying to create a surface based on the part shown below that was imported using Scanto3d.

When I create segmented sketches using the Curve wizard, it splits the curves into the top and bottom of the part. Is it possible to use a single loft and get the whole loop or would i have to use multiple? Is there a better way to create a surface on this part or is a loft still the best bet?

Im using SW 2011.

Thanks