Wow, that's a shame about Eleanor. For those who don't know... Since it is believed to be a hereditary trait, personally I would cull her. Firstly, it's a recurring problem that supposedly only gets worse. Secondly, it is supposed to be a contributing factor to impacted crop and sour crop once it occurs. Since the crop muscles don't usually return to normal, the crop becomes inefficient and digestion becomes difficult. Feeding only softer foods will help this, as anything fiberous will most likely cause problems. Her not laying could very likely be related to it, too, since it's more difficult for her to get the proper nutrients out of her food sources. Has she lost weight, too?
I didn't realize MPC allowed you to buy such a small amount of chicks. The minimum order size is made largely to ensure that there is enough body warmth to maintain the high temperature requirements. I do see now that they use a heating element for smaller orders, which is a great idea. I just hadn't realized it! That's great information to know. I was really wanting a Silver Laced Wyandotte when I was first getting started, but it didn't work out that way. Maybe someday...