I've got a breeder who imports and has the real thing and the long term actual color is not that important to me. Character means more. I do intend on breeding two of the coveted English breeds that were developed to supply the London elites with poultry meat together to see what may hatch out. Never know until it happens and it doesn't happen if someone doesn't make it happen. The two parent breeds are available because some one cared enough to dabble. Not a big university or corporation. Just mostly likely a common breeder with an insight.Light Sussex are an attractive breed. Henry is I'm told a good example of the breed if that sort of thing is important to people. The problem with Henry is he doesn't stay white for long. His daughter Matilda who was the lead hen here seemed much better at looking clean.
The black and white Dorkings are another lovely looking breed imo for large chickens, by British standards at least. Both were popular for meat and eggs not that long ago. Fewer people in the UK keep chickens for meat it seems than in America.