Hello,
We are a team with more than 15 years of experience in animation and 3D realistic visualization.
We can help with 3D animation.
We will have a cost of pre-production which includes the creation of all characters, environments, props and so on based on the storyboard.
After that, we need to see the storyboard in order to understand the level of complexity of the animation in general. For example, if most of the animation scenes are about characters talking versus having most of the animation happening in the sea and characters swimming. I know the examples may be far from what you need, however, I just wanted to say the length of the animation by itself can't determine the total cost we have to know the complexity.
You can read about our clients' feedback and check our portfolio here:
https://www.freelancer.com/u/kingjoon.html
Best regards,
Art Land Design