If you are serious about breeding quality Wyandottes skip the hatching eggs and get a juvenile trio or 2 pairs. With eggs there is no guarantee they will hatch, what sexes you will get or what quality they will be. With juveniles you will have a better starting point.
As with all blue fowl you will have to manage the blue/black/splash spectrum, along with the lacing. Check out Foley's Waterfowl BLRW for what you are striving for.