I agree with Fireflyed, don't let the V1/V2 Techno viper concept limit you. Build a Techno Viper like You think one should look. I would think that Scap Iron Body looks like what I would want for a Techno Viper. He has overalls and looks like he should be working in a Metal Shop. As for Heads and Helmets, go with what you think a Modern Battlefield Technician would look like. Can't wait to see what you come up with!