I charge $250 for a baby quilt, $500 for a twin and $1000 for a queen or king. I do NOT have them buy the materials because they may decide to find a bargain somewhere and no telling what kind of junk you'll be working with. I don't like making quilts from the ground up...it takes so much time away from my longarm quilting, but if they are willing to pay my price, I will. I'm just as happy if the decide it's too expensive. My time is worth money not to mention my expertise. If you are good enough at your craft that people want what you make, you deserve to be paid fairly.