Multi-Style Human Arm 3D Models

I need a set of fully articulated human-arm models that bend naturally at the elbow, rotate at the wrist, and flex at every finger joint. The joint hierarchy has to be clean and animation-ready so I can drop the rigs straight into Unity or Blender without extra tweaking... (Budget: $1500 - $3000 USD, Jobs: 3D Animation, 3D Design, 3D Modelling, 3D Rendering, 3D Rigging, Blender, Maya, Unity 3D)