We would like to purchase this 9" South bend lathe for my son who is studying to be a machinist/engineer, 4' bed, cat# 644 A, but I have no idea how to determine reasonable expense. Is $2000 reasonable? What do I need to specifically check? It is in working order with original parts but I understand replacement parts are expensive if found to be needed. I am guessing 1949 but exact date and serial number has not been provided. I do not want to take advantage but also dont want to assume the seller, my cousin, knows the value as he's never used it. It belonged to our grandfather who passed and had been stored in cousin's garage after grandpa moved in with me for care. I know my grandfather took good care of it. Any advice appreciated.