This has been a long project but it is slowly coming to an end. We finally finished the inside of the room and have finished (kind of) the controls. In the picture below it shows the humidifier used to keep the room at 80 percent moisture. The control unit is a dehumidifier control which requires a relay (grey box) to make it a humidistat control or reverse acting.
Some produce is shown in this attachment.
Next post will show more controls.