I think this is not too far from you and sounds very reasonable -
http://www.persimmonquilts.com/about.html I too ONLY make the top and never have done LAQ myself. I LOVE my LAQ and she has lots of patterns, allows me to bring my own batting and is so good at helping select patterns and thread! Good luck! I had a 110 X110 done and provided my own batting and it ran about 180.