You said something about the EE eggs being khaki.... from what I understand, an EE layer can pretty much be anything that lays and egg that is not white or brown.... I know the term is SUPPOSED to mean a bird that lays a 'blue' egg, but in the end, blue, green, pink, khaki, and olive are all colors that are laid by EE's (although some people like to be special and call their chickens olive eggers if their chickies breed true to that color of egg)... but that's why they are EE's and not araucana or ameraucanas, who are supposed to lay ONLY blue/green/blue-green eggs- and whose eggs SHOULD be fairly blue if they have any sort of quality. The other variations, pink, khaki, olive... those are all variations of the blue mixed with brown or tan egg layers. This mix nixes them from being called araucana or ameraucana, but does not stop their owners from calling them 'easter eggers' and implying they lay a nice colored egg like you imagined. Sucky, but a good lesson learned about egg buying I guess.
I hope that your hatch goes well regardless, and I hope the chicks perform!