I bought some Tennessee red quail and bobwhite quail eggs off
ebay. I don't have the quail racks either. The courtenix eggs should fit fine in the standard egg turner. I modified my turner, to say the least to fit these tiny eggs, a few would go through the whole.
This also helps if you want to put more eggs in the bator, then you have room.
Find an egg carton, where the inside of it has tall peaks, like a jumbo egg carton from the store.
Cut just the inside center out, and tape it to one of the turner trays. And cut the tops off leaving a small hole.
It worked great for me, went through a few cartons before I got what I wanted. I still have them and am going to be hatching quail in a few months from my stock eggs.
Good luck, these quail are so neat and they are so personable. Mine jump on me and sit when I feed or water them.