Hatching eggs is exciting! It's a good thing my incubator doesn't fit 28 eggs (I might get into trouble.) Best wishes to you, your flock and your upcoming chicks!
Thanks for joining and welcome to BackYard Chickens!
For silkie eggs, I've found them at a breeder about an hour away, on eBay, or here is a list of some silkie breeders you can order eggs from. Most hatcheries have them too, but the breeders would usually have the fancier types.