Creating character selector in Unity3D

I am looking for Unity3D game developers, who can build the first part of a Unity game, i.e. selecting a username and creating a 3D character, with the ability to change body traits and clothes.

Will prefer a game developer who has already done it in the past.

Here's the link to my requirement:
https://docs.google.com/document/d/1LmoTjSaXlIgeFmF9anZGbjwJYd_vr0PsE-Ks0pPlQkg/edit?usp=sharing