OK...so first off.... They are way cuter than chicks- so make sure you draw up a legal contract with your FIL about the delivery of the hatched ducklings so that you cant keep them for yourself
But seriously... They take longer to hacth - 4 weeks for ducks other than muscovies who take 5 weeks.
Temp is the same- but humidity needs to be higher- so you might want to plan things so you can do the ducklings on their own depending on your set up. About 55% during the main incubation period- and then 80 % for lockdown.
Duck heaps do much better laying in their sides - so a roll turning incubator or hand turning is best for them.
There is a start for you- but there is a thread on here just started recently - I think it was also made into a sticky.