I sold my lovely blue and white boy last year. Think my black and white one (coming 2 in December) would be too big, as he is 22" at the shoulder.
A lady in the village came to see me yesterday - hoping I would have her 18 month old pygmy billy. He is 18 months, but is brown and white. Think she would want to swap him for either a castrated male, or a female, as if he went that would leave her castrated male kid on his own. Not quite sure how she came to have an intact male, as she has no females as far as I know.