The white legs and white skin may be from Light Sussex in one or both parents, which are commonly used in Red Sex Links crosses.
Yes that is what I said in my first post... probable sussex x ISA brown- common red sex link in Australia plus sussex also being common in that country. So we were guessing similarly.
your comment was taken as meaning two red sex link parents produced this chick. Not possible due to white skin as red sex links are typically yellow skinned.