Sorry have you seen the price is good fabric! I would charge no less the $10 per square foot. These are for a one-of-a-kind quilts. Never seen to exactly the same. With any good luck they become heirlooms. Sorry if they don't want to pay then don't sew. Your time is just as valuable is anybody else. Never worked for free. We all put too much love in our quilts that we make.
i've sold for 40 years and somebody always want something for free. If it's for free I'll give it to my children my grandchildren or to a charity.