We have 2 NG does, just over a year old. I just spoke today to a woman with a meat goat buck. She doesn't know breed, but it should be fullsize, but this one isn't. He was abandoned by mom at birth, had some problems, and she says he's about the size of of my dwarfs. He's a little over 2 yrs...
Just an FYI - we go thru about a bale a week (the small square bales) for our 2 NG does. We live in the country so hay is easy to come by here, any time of year, but you need to make sure that wherever you're going to store it will keep it good and dry, as they can get very sick if there is any...