I cannot give you an exact length as I'm not familiar with doing the Big 3 in that specific car but if you don't get any exact answers just go ahead and buy 15~20ft of 1/0awg.
That will leave you more than enough to do what you need to do and excess lengths of 1/0awg aren't too difficult to get rid of //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif