My experience is with various graphic designs, from the big and simple to the small and complex.
Recently I've done a lot of iconography, usually involving painting by hand in a small format, just like this. I believe that your project is very feasible. I hope you'll give my portfolio a look. If you do, I think you'll find this project quite feasible too. It's all just a matter of time.
As a student, my primary goal is to expand my portfolio, whilst putting any funds earned toward my fine arts education. As such, I will request that I am allowed to display the completed work in my portfolio, but will not require a particularly high budget.