I made a decision -- I will use my FQ bundle supplemented by stash fabrics. The obvious choice would be to assign the colors as Bonnie has done and eliminate my lighter blues, but since my blues have the largest range of value, I think I will use the blues as the orange; I'm also putting green as blue, and gold as green. This puts me closest to Bonnie's values, with my green and tomato being a bit darker than my gold and blue. I imagine it will drastically change the effect to replace an advancing hot color with a receding cool color, but I guess I'm feeling adventurous.
Now that I've made a decision, I am really excited to start. I just have to get two projects off my wall and I can start pressing these fabrics!