GB,
Apologies. I did not mean to decease your brother-in-law or diminish your sister's machining skills.
I was thinking the handle supplier might be an aftermarket company providing handles for various marks and models. I don't think Myford would help with a South Bend. Does "Myford," per se, actually still exist?
I have a gallon of the acid you need in my garage. You're welcome to it, but shipping might be prohibitive and frowned upon.
Richard L.