Howdy everyone. I used this idea to build an incubator.
https://www.backyardchickens.com/a/homemade-incubator
differences being... taller for double stack 2 turners, 2 -40watt bulbs and 3255 gqf thermostat, air pushed by 2 small 2 1/2" fans. bulbs and fans in a rear chamber to suck air...