finished as best as i could. someone with more blender experience can have a stab at it. i removed as many doubles, flip normals etc as i could, but in pepakura it shows dark faces, but no open faces show up. enjoy
link
http://www.mediafire.com/?abfn0f4jg4xjuf9
Not unfolded.
link
http://www.mediafire.com/?abfn0f4jg4xjuf9
Not unfolded.