If you're willing to do a lot of work with wrap, the bandages on the Nerubian would fit the style of the handle in the WoW image you linked perfectly. If you don't want to do that massive work, you could pretty easily wrap the handle to the handle of the Magnataur's spear.
As for the golden parts of the weapon, you could use the Infernal Machine texture, it has plenty of gold parts that would fit perfectly.
Now that I'm thinking about it, the next time I feel like making a model, I'm probably going to create a Scythe for my Black Steel set which uses the Infernal Machine texture.