Hi
I understood what is your need.
I am a 3D generalist, I have a good experience in modelling, animation, rigging, effects, and post.
I did the same type of several projects.
You need good quality for that so you have to choose a good freelancer for that.
For the demo I need 5 to 7 days to show you look and feel of final output.
I am new on this site, but you can check my profile
I Need detail of what type of content you are providing like script, story board, model, color scheme,
And what you need from my side?.
I Am inviting you to discuss further details.