If you go the white filler and black stain some forum members have found DT Black Stump may not be dark enough. Best to hunt down one of Muzza's build diaries as he was building a couple of PRS shapes and the black was not black enough for him.

Sounds like a cool effect you are hoping to achieve, and yes it would look best done with black filler and white body.

A quick google search brought up these pages... http://www.woodmagazine.com/material...th-wood-bleach
http://www.popularwoodworking.com/pr...bleaching-wood