Hi, I am a 3D Modeler and Animator. I work with blender 2.8, I saw the references. for long-term projects it is better to talk about packages for costs and it would also be good to know with the details you require for example. Model, rigging, facial rigging, textured, Uvs maps. a model with all that is roughly $ 45 without the easy rig that is more complex.
Now to work for a series or for a longer time we can talk about what you need and make a package and a production plan. If you are interested I am in the chat for any information in freelancer this my portfolio thank you in advance ..