A new incubator!i need help

[mypurtychickens]

okay so i was planning on making a new incubator.because the incubator that i have does not have enough room in it.i am hatching:
light brahmas
buff brahmas
white crested blue polish
and silver pheonix (aka silver duckwing)
more to come!
anyway i have two hens of each breed and i am planning to hatch All of the eggs that they lay if i am going to sell the chicks and have enough money to pay for supplies and such.
Does anyone have any ideas for a cheap,easy to make but spacious incubator?
please if you can post pictures or pm me.
thanks!

 

[trsturself]

Here's a good place to start... https://www.backyardchickens.com/a/homemade-chicken-egg-incubator-designs-pictures

 

[mypurtychickens]

I am trying to see if anyone has any ideas other than what is on there.but thanks