I think this is a "good" 3D model. The repaired STL or the repaired x2 STL 'should' be OK to print - I think. The obj may also be OK. The .skp file seems pretty good, however sketchup doesn't always export very well.
http://www.rebeldroids.net/gallery/displ...play_media
http://www.rebeldroids.net/gallery/displ...play_media