Heavy Dragon from X3 Terran Conflict

I am new to all of this, so someone who is more skilled could probably clean this model up some. The model seems to have a lot of unneccessary overlapping shells, but both Slic3r and Cura were able to get around that and print it properly.

This is the Heavy Dragon from the video game X3: Terran Conflict and X3: Albion Prelude.

As extracted and converted it is 900mm long, so it needs to be scaled down in your slicer in order to fit on most mortal printers. The printed part in the pictures i