I am working on putting together a bator similar to this one:
https://www.backyardchickens.com/web/viewblog.php?id=1996-chic-chick-bator
I am thinking about making a few design changes and would like some opinions from those who have more experience
I am going to try to keep all of the wires and stuff going out the back of the cooler. I am thinking about putting the socked on the back of the cooler in the corner and the thermostat more towards the middle of the back near where the eggs will go. I was also thinking about putting the fan on the middle of the lid to circulate the hot air back down. Is this a good idea or should I put the fan near the light bulb?
https://www.backyardchickens.com/web/viewblog.php?id=1996-chic-chick-bator
I am thinking about making a few design changes and would like some opinions from those who have more experience

I am going to try to keep all of the wires and stuff going out the back of the cooler. I am thinking about putting the socked on the back of the cooler in the corner and the thermostat more towards the middle of the back near where the eggs will go. I was also thinking about putting the fan on the middle of the lid to circulate the hot air back down. Is this a good idea or should I put the fan near the light bulb?