I'm assuming the time frame involved a lot of research and learning new skills to implement the design.

Regardless, the accomplishment of this alone would surely be enough to land the guy a job in the costume department for a special effects company. I've seen much worse work on huge budget movies, if a guy can do this in his free time with his spare cash he should definitely get a hire somewhere.

Edit: Robot Rock - http://www.youtube.com/watch?v=rBbasXXtrXw&a=GxdCwVVULXd...