I wrote my reply before I left the office. Try to check BYH at the end of my day
But, I thought about something on the way home.
You said you had an opportunity to get a 5 year old Alpine. What are the circumstances? The reason I ask is that even though they can be productive to 10 or 12, some start to have issues as they age. I guess what I'm saying is make sure she isn't someones "cull".
I read a poster on here once who was a pretty serious dairy goat breeder and they said that they culled a goat when she had trouble kidding twice. Some start to have issues with Mastitis.
I would be extra diligent buying an older goat.
And, the big question is "how much does she cost'?