How much would it cost to start up and maintain yearly-Henhouse, 3 henyards attached, 16 chicks, feed, medications? 3 yards would be for weekly transfering chickens to new grass, so old yards can recuperate. Anything I missed, please let me know. (I already know one--more chickens) My DF needs to know this stuff, I'll be taking care of the birds. He doesn't need to know about more chickens, does he?