Now why am I not surprised that you might be getting Rhea :-).
You have a wee zoo there. Bet folk enjoy visiting your place :-)
I might hatch a batch, but probably would have to give light.and vits later on to get decent results. Late hatching can result in them being a bit stunted, I don't want that, would be a waste.
So I have actually talked myself out of it :-) sensible outcome really.
Good luck :-)