Hi, I am an engineer specialized in complex machine simulators and virtual reality. I use Unity3d, 3d studio max and Autocad for my work.I have already completed various projects such as yours for my clients. See my portfollio for some examples.
I know well the work needed to be done, for you to work with the 3d model in Unity, (pivot points, hierarchy, animation ecc.) and I am more than capable of doing it. (I could also finish it in Unity for you, if you agree to a small additional fee. )
Please contact me to further discuss your project's details if you are interested in working with me.
Best regards,
Vangelis