Are you insane? Been there, done that, got the T-shirt.....
Let's just say, I experienced that trip once in my life. With a van full of family members and a father who was determined to make it down in one fell swoop! Pure hell.
Seriously though, if you take your time, MAKE LOTS OF STOPS, and enjoy the ride you could be there (well rested) in 3 days. Or arrive a wreck in 2. Slow and steady would be a better way to start the magic.
Me, I fly now from the 'burgh....