I actually had a helmet for Ripper (Heavy Duty's) but decided he didn't need it if he didn't have arm armor. And since the bare arms were a defining Dreadnok characteristic they HAD to be included. The body choice was inspired by Heavy Duty's green camo which reminded me of Ripper's original figure. I gave him a rusty wash because the Noks aren't really known for taking care of their junk :)