Need 3d artist for a mobile app character

We need a 3d artist with experience to help us develop a character for a mobile application. I will be for a fitness app. We are looking for a professional 3D character designer for our fitness app. There will be male and female characters in the app. User should be able to make changes on the character. That character will be their physical reflection in the app in terms of height, weight, skin colour, hair colour etc. For example, when user logs in his/her height & weight on the app, the character will automatically will get in that shape. I’d be happy to give further details if you need. Can you help with this project? If your answer is yes, how long does it take to design and delivery it?