I would ask $800 to $1,000 for it. You have probably over 25 yards of fabric ($250 to replace that), batting would be another $35 or so, how many yards of thread to piece and quilt it...you have a minimum of $300 in materials and you should measure the quilt and pay yourself at least $0.015 per square inch for the quilting (L x W x .015) and double the cost of the quilting for the piecing (you washed, ironed, cut, sewed, ironed, ironed, ironed).