A lot of Asil don't do well raised like other chickens. They need to be raised by a hen. The hen keeps them in line and keeps the pecking order battles from getting too serious. Most people are probably going to sell Asil a little older, once they have had a chance to see them develop a little and make their own picks. They aren't really a breed that is easy to mass proiduce, the hens only lay so many eggs before they go broody, the chicks don't do as good without a hen, and it's kind of hard to house a whole lot of hens. So most people are going to start with a limited number, and then they are going to want to pick out their own replacements, from those.
There are hatcheries with Asil. I don't know how their birds are bred, but if I was a hatchery and offered the Asils that I have as day old chicks, I don't think it would work well. First, I would have to have a jillion hens in order to make sure and have one that was laying at any given time. I would have to charge a fortune. Then, if I shoved them in a box with enough other chicks to keep them warm, I don't think the other chicks would arrive without damage. Imagine a baby veloci-raptor, and you will have a pretty good idea what I'm describing.
If you had a hen to put them under, some hatching eggs might work better for you than chicks.