So I have been away from this thread for awhile and have been catching up on posts...only 107 to go...and I came upon the pics of your huge professional looking incubators.  I was very impressed, let me tell you!  
 
But then I remembered that you (or someone else here?) mentioned losing power or a bulb or something in an incubator and being uncertain if the hatch would be successful, and I thought to myself what a horrible thing it would be to have that many eggs lost to a power outage!  And I remembered a solution someone on this site had come up with for a homemade incubator that had temperature consistency problems -- water!  Rather than just open containers of water for humidity, this person also had several closed containers of water that acted as heat sinks.  This meant that the incubator was slow to warm up...and slow to cool off!  If the incubator had any problem with losing power the heat would not plummet inside, but instead gradually decrease as the water let off warmth to help the eggs survive until power could be restored.  The water containers are closed to keep from affecting humidity, and to keep from drowning the chicks when they hatch.  The person used a "water weasel," a water filled tube that is sold as a kids' toy, and then made a container out of several ziplocks one inside the other, but I'd bet you could use tupperware, water bottles, or anything water-tight.
 
Maybe this will help some of the anxiety that comes with incubator issues!
 
Now I go back to page 138 to read more.
 
(PS, my favorite parts are your "travelogue" posts, as well as the pics and descriptions of you setup in the Phillipeans -- both the chicken specific setups and the general stuff!  I love reading about other places and how people do things there.  If it isn't covered in the posts I haven't read yet, I would love to read more about your plans for the chicken selling business.  Have you got anything going yet?  Do you advertise, or does everyone on the island know about the guy with the exotic chickens?
 
Cheers!