For example, the creation of Opts from DXF file formats is easy (See darkjedi.com), however, I think you are looking for a mesh creator (a person who models the ship, and creates the DXF file). You are likely to find a person who creates these files at swma.net, or maybe even here at this message board.
Right now, I am not that skilled in making these files, but I hope to soon.
~Deus
Crap... this was meant to be a reply...