I shouldn´t worry too much about the gander, then. Just keep him with his female, and advise the new owner that he´s a bit of a handful. That may be what they want!sell or give away to a good home where they wont b eaten.
Meanwhile, you may find that carrying a long stick around may keep him at bay. They don´t like sticks much. Don´t need to hit him. Just a poke, maybe, but even that may not be necessary.
Has anyone ever run away from him when he´s being bolshy? That encourages them no end.