Hi, I am professional full-time freelance 3d graphic designer. I work 12+ hours a day as a freelancer and with the experience of 3 years I belive could finish your project in 1 day.
More than that, I have already designed a model that fit perfectly with your description, please check my portfolio for detail: https://www.freelancer.com/u/htnha.html.
That means the moment you reward me your project it's already half done, just need some more edition to fit your idea then it's ready to deliver. I'm looking forward to work for you!