here's a suggestion for you before you drive yourself crazy with that many colors, but you'd prob do it anyways - draw yourself a colored/lettered diagram (even in excel) and then mark your skeins so you know which color to use where. personally, i'd start with some of the lighter colors in the middle, and then go darker. if you have the m/d book, i think there is a pic of a very multi colored log cabin, that you could work off of to get started.
good luck! i'd love to see it when it's done!