Great list! I love shopping lists!!!
Quick suggestion though from one Mary Blair fan to another. There are three books out right now that showcase her talents the best:
The Art and Flair of Mary Blair by John Canemaker -- shows a lot of her stuff from when she wasn't working for Disney and a lot of the concept art for several of her Disney films -- plus a good bit about her life.
Alice in Wonderland by Mary Blair and Jon Scieszka -- all the illustrations are her concept artwork for the film.
Cinderella by Mary Blair and Cynthia Rylant -- again all the illustrations are her concept art.
Amazon has all of them, and they are discounted at 34% -- you won't be able to beat that price. I own all three and love, love, love them!