Oh my gosh, that sounds like a really fun breeding project! And if you can get it to breed true, those would sell like popcorn at a theatre!
I like the idea of just having a silked D'Uccle, no black skin (black skin is usually favored for the dark meat the bird produces... which is kind of...
He's a bad quality Faverolle, and he's absolutely male. If you are inclined, Faverolles are known for having finely textured and high quality meat (they were developed to be dual purposed). He'd make an excellent table bird.