The various map sites say it's just over thirty hours from here, if we don't hit traffic. Which...I'm figuring we COULD do it in three days, but likely we'll get there early in the morning of the fourth.
Have to figure out what we're doing as far as stopping along the way.
With two of you, just drive as long as you can... and the map sites go the exact speed limit. Five miles over, consistently, cuts a lot off a trip that long.
You might hit traffic around some of the cities but it shouldn't be too bad.