Where do you intend to grade?
At our facility by remote correspondence. This is the most cost effective. The grading process can start earlier, even at the time of the first cut, and the colorist is more involved in the project.
At another facility of your choice, where they provide the hardware, or I bring my own travel set. Working there needs to be more structured, and adds travel expenses.
Workflow diagram for fast and efficient remote collaboration between all creatives.
The color grading can start after the first day of the shoot, and the whole creative team has immediate acces to the fully graded dailies or proxies.
Start discussing looks and reviews early in the process, let the edit and color evolve together.
New editorial versions are updated in the grading studio, as many times as you need, until delivery day.