Great work. Didn't know you could still get Heinz Warner parts.
Most jacks today are built you-know-where. I bought one, it was fair. I cut shims for the casters, they were sloppy. The two piece handle was indeed quite a piece. It got several holes and spot welded for rigidity. The gear drive needed a guide washer on the base of the handle.
Okay for home use, not comparable to the Heinz Warner pictured here.
Over at www.garagejournal.com there is a guy on there that carries the parts to rebuild them. I just can't remember his name right off. If anyone is interested, I can find out who it is, or go there to the General Tool Discussion and almost anyone there can point you out to him.