Dunster is right. We could give you what would be "typical" in our region, but that could vary widely and you'd be just as informed as you are now.
Your better bet is to ask around locally for recommendations and interview potential quilters for this project. Check with your local quilt shops and guilds. Another great place to look is your local churches. Many times churches have a group of ladies who like to have old-fashioned quilting bees, where they all sit around a large frame at the same time and socialize as they quilt.