3D character animation videos of exercises + static images

Significant project to create the following: *25 30-60s videos of a person doing simple stretches and exercises. Photo realistic computer generated of person against a blank white background. Will be either sitting in an office chair, or standing. *170 still images of a person at a computer in various postures, or of specific pieces of office equipment. Photo realistic computer generated images. Many of these images are relatively simple, or minor variations on a basic sent of images. Source materials will be provided (existing sketches of each image or exercise, plus videos of a real-world model to copy for the exercises). See attached specification for more information. Three candidates will be chosen to be paid to complete an initial first 30-60s exercise video. One candidate will then be chosen to complete the rest of the project, which will be divided into stages. We have a relatively short timeframe of 1 month for each of the 2 projects above. We are unsure of the number of hours this project is likely to involve, and what a realistic budget is for the good quality result we require. Please provide your own estimate for the total project (cost and/or hours), or provide a quote only for the intial first 30-60s test animation. Also provide a timeline you can commit to, and we will discuss further. Please provide some examples or (or links to) your existing animation work, preferably showing photo-realistic (rather than fantasy/gaming/cartoon) animations.