Since the title is pretty specific, I'll skip the niceties. If you already have an .obj model for the helmet, then I just need it converted to .pdo. If you do not already have the file, and want to freehand model it, here are a few references.
I apologize for having no top or back reference images. To whoever chooses to model this, thank you. I appreciate it.

I apologize for having no top or back reference images. To whoever chooses to model this, thank you. I appreciate it.