Custom Mod Questions

I have been thinking about commissioning a private mod for myself and some friends, but I have some questions first.

To clarify, the car in question is a Mercedes Lotec C1000. It is a 1/1 full-carbon supercar with a theoretical top speed of 268 MPH.
If I were to commission it, I would like it to be as accurate as possible, along with some extra customizations for fun.
However, it has only appeared in one game and looks like this:

You couldn't exactly pull the model from this, so it would have to be made from scratch.

Some features I would like are:
Opening doors, hood, tailgate, etc.
Fully functioning dash, lights, etc,
Animated shifter
Versions with both the Mercedes logo and branding and some lore-friendly badges as another option.
Realistic quality (like Frix quality or better).
Realistic handling, acceleration, etc

If I were to commission this, how much would it cost and how much time would it take, taking into account the model made from scratch and factors listed above?

Thanks!