Well, I'm no expert but,
You can get 100w cfl's at HD that put out close to 7000 usable lumnes each (listed at 10,000)and get better canopy penetration than a bunch of smaller ones. They are like $15 per bulb. Would be a lot easier to rig a few of those and it's slightly more efficient too.
...and yes, cool white for veg. and mix in some warm white for flower.