If anyone is near Rollinsford, NH the antique for $10 might be worth a quick look!
http://nh.craigslist.org/atq/2448712132.html
This isn't as cheap, but that stool contents look like it's a possibility:
http://nh.craigslist.org/atq/2483394651.html
Cheap, but abused treadle in Pepperel (sp), Ma
http://nh.craigslist.org/fuo/2427267190.html
Looks pretty good
http://nh.craigslist.org/atq/2436466975.html