I was a bit surprised at how deep and dark the two purples are. To me they represent a range of color from royal purple to deep purple that falls to the blue side of purple. If you have a deep stash, it would be easy to choose 6 - 10 pieces that represent that color range. Of course you would have to divide them up and designate which are the "royal" purple and which are the bluish purples. The pinks are easy medium pink and the second is lighter but slightly peachy. I would call the blue medium but very clear. It is not muddied by other tones. It would be easy to go lighter and still maintain the color and contrast needed. The white is just slightly off a pure white and slightly leaning toward cream. If you lay the white paint chip on a piece of white copy paper it looks just slightly off-white. My guess is that any white or WoW would do just fine.
On the whole, I think Bonnie did a good job keeping the color and choice descriptions open and free enough for your own interpretation of her color palette. All of the colors seem to be "pure" colors, not faded or grayed in any way.
I can see how choosing colors could drive you batty. I looked at my stash and I have white, one deep royal purple and one pink. No bluish purple, no light blue and no raspberry. But that is only a cursory look.