Try this site:
http://www.patented-antiques.com/Sewing_Machines_Fw.htm
Some of the machines aren't too high in price. Also, scroll down 2/3 of the page and there is a rare cabinet made for a FW that has a 'lift' in it that allows the FW to store down inside the cabinet when not in use! I have never heard of one of these cabinets for a FW.
Another site that you might try is Cathy Forcino~~
http://www.cathylynnforcino.com/sewing%20machines.html
She makes mohair Teddy Bears but she also sells FW's and 301's. I've bought several 301's and a FW from her. If you check out her sewing machine page you will see a pic of my little golden retriever, Sasha, checking out the box when my first machine arrived. Her packing is awesome!