Looking for Boundary Peak details

I'm planning a trip to Boundary Peak in early Sept 05.
We have the Winger book & Holmes 1990 (?) ed.
We will probably be travelling in a 2WD Toyota Tundra.

Question:
1) How much water do folks take for the hike? We like to take a little more than we expect to use. 3 quarts / person? 4 Qts? more?

2) When we get to the trailhead, is there any way to really really confirm that we are that trailhead? I'm afraid of taking a wrong turn and ending up at the end of the wrong gravel road. Is there a sign, spot-a-pot, or something unique at that trailhead.

3) Is it reasonable to start the hike before dawn if we have good flashlights & headlamps and we scout out the first 200 yrds the day before? I want to get in practice for Whitney and we will need to start that one before dawn. Besides, I would like to hit the ridge by sunrise or so. I think the photos should be great at that time of day.

4) How long should the drive take from the highway to the trailhead?

BTW: We are planning the traditional trailhead, not the Queens Canyon TH.