I havent read the whole thread but I found a link to some birds that look a lot like yours. Hope it helps. It is the 8th pic down.
http://www.feathersite.com/Poultry/CGA/Cochins/BRKCochinBty.html
http://www.feathersite.com/Poultry/CGA/Cochins/BRKCochinBty.html