wow, what a great find. hmmm, good points on both sides of the coin here lol. Why dont you try this? Baste around the edge of just one of the badly stained squares, and wash just the one square by hand, and that way you can find out what works best to get the stains out. If it works well to get one stain out, then you can wash the rest first too, or put the quilt together and then wash it. If it doesnt take the stain out, then, stil with just this one square, you can try giving it a tea bath. I've seen photo's online of quilts that have been dyed with tea, and they come out with a gorgeous antique look to them.