I will be building a brooder house this winter for setting and rearing groups of 36 hatching eggs (ultimately 72 in following years). Brooder house will be pressed into service when temperature is prone to vary and power supply has historically been unreliable. Each group will be made up of six lots with 6 medium sized eggs each. How reliably could I set up six silkies to be at the "broody" when eggs need to be set? I have never even touched a silkie so advice needed.