I think I'm gonna buy an incubator. I built a styrofoam one that seems to work pretty well. Right now it has 3 eggs in it that are due the 21st. But in addition to that I think I'm gonna get theee...Hova Bator 1602-N Incubator. Does anyone have this incubator? Is it made of plastic? And what about one of the Sportsman cabinet incubators? How many eggs do both the hova bator and the sportsman hold?