Refer to the .3mf Orca profile for print settings.
Push the rod through the hinge attaching the body and the head. It should friction fit, but if its too loose try increasing the scaling a bit until it friction fits (or use glue, but I feel like that'll be a bit overkill).
Push the eyes directly into the sockets. It might take some force and a whack, but the eyes are just slightly bigger than the sockets so it shouldn't be too difficult.
Two .blend files are included. repoexport.blend is the final version used in the .3mf with some of the modifiers applied and some additional edits made, and repobeforeexport.blend is the original file without any modifiers applied so that might be easier to edit but there are some changes that you'll need to account for.
The author marked this model as their own original creation.