Citychickers, I just saw this thread, and do wish you success with these eggs. Chicks can & do hatch under some extreme & unusual situations so you just might get some of these to come out. But some times you can do everything "right" and still not get anyone to hatch.
You seem to be doing all you can do & more for the benefit of these eggs. Don't blame yourself if things go wrong, just learn for later. (And share your new wisdom with us too!)
It's often difficult to decide just how much to intervene with hatching chicks, sometimes they need our help & other times we can do more harm than good. Intervene or interfere? It's tough to know for sure, even with experience. You just have to live & learn.
One thing you might want to consider for next time is to put all the eggs under at one time. When you realize you have a broody hen you can set her on fake eggs for a few days until you collect all the other eggs you really want them to hatch. You can store those fresh eggs in a coolish place, on a counter or table top, in an egg carton large end up. You can tilt the carton 45 degrees, and switch sides morning & night. I write AM & PM on the ends of the carton so I can keep track of which end should be up. Then when you've collected enough you can slide out the fake eggs one night & tuck the good eggs underneath the broody hen. That way they'll all hatch out around the same day under the hen, not throughout the week. Most broodies won't continue to set on eggs once they've got day-old chicks.
Remember that the chickens themselves play a numbers game with their offspring. Their instincts tell them that there are all sorts of things that can go wrong with the eggs & the chicks, so they always lay extras. So go ahead & try your best to get these eggs & chicks to succeed, but don't let it break your heart if they don't.
But I'm hoping for great success for you & for them!
