Turning an IGES files (Curves) into a solid model for basic collision analysis.

Hello, I am a (very!) new user to solidworks and, through the help of some of your members, have been able to import an IGES file of an LNG ship into solidworks.

I have a series of curves, and not much else! I need to turn this into a solid object so that I can model some basic collisions, i.e. a point force on the hull of the ship etc.

I have tried using the "Inset -> Surface -> Fill" method, would this be suitable for producing a solid model? Or is there another method that may be quicker and more effective?

Any assistance you can offer would be massively appreicated!

Many thanks,

Gareth

(P.s. I have uploaded a copy of the file!)

SolidworksSimulation