She's very generous to pay for all that, let me day that first! Figure out how much the classes are, the fabric, the pattern, for the size of the quilt figure out how much your time is worth. If you were going to hire yourself as a quilter how much would you pay yourself an hour? Make sure you factor in your experience or lack of experience, how fast you are, how long it will take you to finish,etc. Then add it up. My quilter charges me the length times the width times .020 plus binding. So try to factor that in as well. Hope that helps.
One more thing, does she expect you to make a back as well, make sure you factor in the cost for that as well.