DuckMamaorBust - Yes, Scovie eggs are a little difficult to hatch. Most mallard derived duck eggs are standard difficulty for hatching id think. The only thing is ive heard runners migth be harder to hatch but other than that im not sure what else i could put in.
I might have skipped the fact but do you have a home lined up for them when they are too big for the brooder?? Because that might be a good idea, you could even talk to parents and see if the kids can babysit if they have a back yard. That would be neat