Sounds like a fun challenge, and something I've never done before! I've done B&W layouts and monochromatic layouts in a specific color family, but not white on white. The color swatch you posted isn't showing up for me--did it come from someplace that you could link me to? I've read through the first 3 or so pages and haven't seen anyone else mention it, but I can't think why I'd be the only one it isn't showing for.

I think I need to see it before I start, since the example layout looks more gray than white on my screen. Thanks!