OH Ok well like I said, finding good quality Partridge Wyandottes to would be the tricky part and with using Partridge, since we dont have Red Duckwing Wyandottes here in the US, they wouldnt be true pyles but more corectly called Lemon Partridge. But if you wanted to do real Red Pyle Leghorns, those should be super easy since you are using the same breed and dont have to out cross to another breed to get back to the right type, with that project, at any point you are you would still have pure Leghorns ya know, you'd just have to breed a few generations back to the Brown Leghorns to get the right Red Pyle coloring. But that would give you an easy way to get your feet wet with genetics and give you a pretty bird that should be great layers, I'm surprised that no one has already made them her in the US.