Action figure sculpture needed

I have an action figure than needs to be sculpted and could be generated in zbrush, mudbox or sculpted by hand. It is 6.25" in height and features 14 points of articulation. I will supply you with the view drawings and notes that are needed to construct the figure. It is is unique in the sense that it is two creatures but only one body with 2 heads and 2 sets of hands that snap it to create either creature. Once complete, it will be cast in brown and white to be painted to resemble Sasquatch or Yeti. These will be "Series 2" of an action line I am release in the fall of this year called "Legendary Monsters" The sculpts would need to be designed and approved before finally being printed out. They must be functional (works like/looks like) prototypes.