The Kooky Kiwi
Crowing
Hi Shell 
We would need a little more information about your other birds before taking a crack at the possible outcomes if you bred them to your Gold Sebright
And just to quickly comment on the white - the outcomes will depend on which type of white you have. There is Dominant White and Recessive White.
If you are able to give us the specific breed and detailed colour/pattern description of your proposed rooster, and potentially a picture, the would be awesome!!

We would need a little more information about your other birds before taking a crack at the possible outcomes if you bred them to your Gold Sebright

And just to quickly comment on the white - the outcomes will depend on which type of white you have. There is Dominant White and Recessive White.
If you are able to give us the specific breed and detailed colour/pattern description of your proposed rooster, and potentially a picture, the would be awesome!!