That's the fun of scrappy quilts - decide what colors you like best, that fit the color needed, and just make sure all of them together total the amount listed on the pattern. Sometimes, it's easier to pick a bunch of fabrics, and make sure there's lots extra - just pick colors as you go, favorites first, until the quilt is done. Nothing has to be exact, as far as picking fabrics goes... just make sure you have the right colors, and enough of them. Hope that makes some kind of sense.... it did in my brain, but that doesn't always mean much....