I have a Singer 153W102 bottom+needle feed cylinder arm sewing machine is for sale. Just the head, no table or motor. Price is $450 if you pick it up near Detroit, Michigan.  Pickup is preferred, but this head could be shipped in a box. The head alone weighs 65 lbs. Packaged well, the shipping weight would be close to 90 lbs. Dimensions would be around 16x20x24 for the outer box. Packaging takes time and new nested cardboard boxes and foam-in-place pouches are not cheap. Add $50 for pa