LONG HAIR SHEEP

I just saw a picture of a long hair sheep. WOW I fell in love! I would like to know
more about them. They have long straight hair and lots of it...some look like human
hair and others look really thick. Would like to know do you raise them the same
as other sheep? Food? Sheering? Where can you buy them? Cost? Can you use them
for meat as well as wool?
How much would you get for thier wool? Where are there places that can spin the wool?
Thanks.