Hi Egglady,
We have some young geese for sale at the moment which we bought as day olds around Easter time. They're probably 3/4 grown by now, and are pretty much your common or garden white farmyard goose (they look a bit like embdens). We have two spare girls and one boy available (sexed at day old).
We're near Stirling, so not too far away. PM me if you're interested.