I have raised both Bobwhite and Coturnix.
Id rather eat the bobs but will not turn down a coturnix with them being more of a meat producing bird. They are ready for slaughter in 6-8 weeks. The only draw back to them you have to incubate the eggs, they will not hatch them.
My bobs (250 or so) I raised in a ground pen of about 10x20 fully enclosed with electric fence around the bottom and top.
Coturnix I raised in an upright dog coop (50-60). They eat and waste a LOT of food!!
The fella I bought my Coturnix from had a sweet setup, he has an old milk barn that he built several 6x10 pens in. He was able to hatch, sort and raise them all in one location. Only issue I seen was no exhaust fan, the ammonia smell was terrible in there.
Its been a while since I had mine but seems like I paid .25/chick unless I bought in bulk and $1.50/2 week olds. This is on the Coturnix