3D Educational Animation Needed

I have an educational video in production and now need the 3-D portion completed as soon as possible. The job can be either a full 3-D animated sequence or individual 3-D elements that drop seamlessly into my existing edit—whichever workflow gets us to a polished learning tool fastest... (Budget: $30 - $250 USD, Jobs: 3D Animation, 3D Design, 3D Graphic Design, 3D Illustration, 3D Modelling, 3D Rendering, 3D Rigging, 3D Visualization, After Effects, Animation)