There's dressing up as your favorite game or TV character, then there's assembling a massive suit of Warhammer 40K armor. Like, say, this massive suit of Warhammer 40K armor.
In addition to the images and video here, Roses and Boltshells have posted a large gallery of the outfit over on their Facebook page. They report that it cost $2,000 USD to make, and took them 2 months working on it in their spare time. Very impressive, fellas.