The item pictured is the exact one you are getting.  It appears to be new, unpainted and unassembled.  I believe it is signed by the artist on the box (Marc Havican).  The certificate of authenticity is present, I just felt weird about leaving the original buyers name on there so I blacked it out on the picture.  The actual certificate is unaltered.  I don't have much info on this other than a few examples of this being relatively expensive upon release.  If you look it up the model does look pretty impressive once assembled and painted.  Feel free to contact me with any questions and I'll do my best.  Don't be afraid to make offers!