I personally would start at $19,000. You have low miles big plus and all stock (matters to some people). You are coming up on convertible season for us northerners. Remember a roadster for half the country is a toy not a daily driver. In a month or two would be a good selling time. Make sure to list were it can be seen nationwide. People will travel for a car they want. As far as color goes everybody has their favorite. When I was looking I would have taken any of the 4 colors available. I was looking for low miles.