I picked up the Ork Stompa recently and finally got it put together. It went together fairly easily, though it took me about 3 evenings of on and off work to get it done.
I started the airbrushing with Model Air: Gold yellow. Then I decided that I wanted to try out the chipping medium, so I sprayed the model with Model Air: Rust, and then coated it with the chipping medium.
It is 12" tall at the smoke stacks, easily making him the largest model that I own. More to come.