If you decide to hatch your Callie quail eggs in an incubator can I suggest that you pop a few Jap quail eggs in the incubator a couple of days before the Callie eggs. One of the problems I had was that the Callies won't eat after they hatch and need "someone" to show them how - if the Japs hatch first and have already worked out the food and water then the Callies will copy them.
I hope your birds will sit but of all the Callies I have had I have only had one pair that would reliably sit and raise their young, so using an incubator is usually necessary. My pair preferred a box attached to the aviary wall about 1m off the ground with wood shavings and hay. They are the cutest babies - can run very, very fast and also, they fly really well from a very young age - (not fun trying to catch them when they escape from the brooder!)
In Melbourne they don't start to lay till November/December.
A ever increasing mixture of very large and very small chooks, Indian Runner Ducks, Parrots, Quails, Doves (and a very understanding family!)