I've coloured in and labelled the drawings to see what it should eventually look like.
It is made of wood; has 2 doors, one to get the main part with eggs in, one to get to the water pan; has a perspex viewing window; 2 light bulbs to provide heat.
I may put in it a small computer fan to provide circulation and keep constant heat throughout, I may also use a thermostat but haven't decided which type yet.
The eggs sit on the mesh which you can see in the second picture.
The 3D, labelled and coloured in versions of: