Space Pirate cosmo gun prop

This is from my favorite movie galaxy express 999
in the movie it was one of a kind I'd like to print it if I will the contest give away.
I'm using adobe illustrator to design the print layout right now
I got the pic from
http://paperkraft.blogspot.com/2010/01/cosmo-dragoon-papercraft-galaxy-express.html


Here are the Adobe illustrator files for it so far
http://www.thingiverse.com/thing:2879