I don't grow the Salvia (Salvia splendens 'Yvonne's Salvia') but it sure is a beauty! Hopefully there are members who will have some extra seeds that they can share with you.
I'm sure the seed you have to offer in trade will entice someone. I've copied and pasted database links below for anyone wanting to check them out: There are a few Orange Cockscomb listed in the database: http://garden.org/plants/searc...
We don't have a database listing for the Celosia cultivar 'Hi--Z' yet but it sure is a pretty one too!