One led source to look at is www.buildmyled.com
. They have a diy app that allows you to custom design [they build it for you] an led light or you can choose a premade led light. If you go the diy you can achieve a color temp of 5500-5900k with a CRI of 98. That's a nearly impossible combo with other lights, florescent to be specific with the possible exception of plasma lighting.
From what I've heard here on this forum BML is very helpful with your questions.