I had to do this a few years ago. It took me a week to measure all the fabrics. Ins.co. called quilting fabric and batting's at $20 per yd. and my upholstering fabrics at $40. Since then I always pin a piece of paper with measurements on each one,and revise it each time I cut part of it away. I thought $10,000 was ample but I was so wrong-fabric alone was worth $40,000 -I ended up at $60,000 to cover 1 room's contents. So do not under value your treasure trove of fabrics and machines.