What a great quilt! I'm sure that if you ever get lemons, you'd turn them into lemonade!
I just bought my first precuts. Some layer cakes and jelly rolls. I was disappointed in that there was a ton of dark/black fabrics and very few lights. They were brown-ish, orange-ish fall colors. And, out of the blue, there was a pink calico fabric! Go figure.
I bought a small book, only 4"x6", called: Quilting with Precuts. I got it on Amazon. It gives you charts as to how many of each precut you'll need to make a block using the sizes precuts come in. It also has a several common block pattens with directions on how many of what size precut you'll need. It's handy to have around.