HI , i can take care of all the points on the description and can even give new ideas if they came up (they usually do) if you want too, i also work with SourceTree so can use Github.
i have been working with Unity 5 with the new UI system since the beta came out.
i have been working with Unity for the last 3 years and i can take care of any stage of development (Modelling, Texturing, Animating, Importing, Rigging, Programming, etc.).
if you have any questions , Please contact me. i'll be glad to answer them.
Thank you .