I don't have any idea on that, but I suspect a deal breaker would be to take them, one by one, to a quilt shop and tell them to look at and price any fabric they want or like. And to add backing and batting prices..if they don't faint at that final cost (take a calculator) then you can set down with them and talk prices for your time. Then let them look at the total all written down in black and white..might shock them speechless at your actually wanting money for "keeping busy"!!! I've actually heard someone say that about the art of quilting..