I keep mine in built-in cages 2 ft by 3 ft with a led light fitted in each cage, very economical, doesn't overheat them, on a timer so they get the 14-16 hours they need. Wire fronts on a hinged frame, very small mesh ( you will need 1/2 in mesh for CPQs.) they are real escape artists. Or you can use those guinea pig cages that are a plastic tray with a removeable mesh top, they are good. Need plenty of ventilation and air as well as light.
Growers pellets are not enough on their own, too boring, they need a mix of smaller seeds as well wild bird seeds, eg robin food, might be good.,they prefer seeds, also dried mealworms, a sprinkle a day when big enough to eat them. Also daily greens, lettuce or salad, when a bit bigger.
You will need to get chick size grit, or preferably the sort or small cage birds which has extra calcium added as little granules. Chicken and pigeon grit is too big for them.
I do find the length of incubation amazing. Maybe you should get a second thermometer and do trials of this against the incubator setting, without rggs in obviously, as it may be that your incubator is running colder than you expect and this was delaying the hatch. Glad it turned out OK though.