Hi,
Here's a W&G hand crank modification from Treadle On:
http://www.treadleon.net/sewingmachi...ibbscrank.html
I was pretty impressed with the Singer 40K, a high quality toy. At 4lbs it's a bit light and certainly no W&G:
http://www.quiltingboard.com/vintage...m-t266870.html
Jon