Kass, that sounds like a great plan! I have been looking on line all day; what I would like to do is find yardage that I love and try a single fabric per color version and see what that's like.
I also have a possibility in my stash. It's a FQ bundle I've had for years with no inclination of what to do with it. It has the appropriate number of colors of similar value. I went through my stash for supplemental fabrics and would have enough. But it's a busy group of fabrics and I might run into trouble if the quilt is in very small pieces. My red would be more orange and my orange would be more yellow. My green is also much yellower, and the blue very grayed. It looks quite dreary compared to Bonnie's palette, but . . . I wouldn't have to buy anything.