I would have only sent it back to acme. I let a local shop do mine once and it just isn't worth sending it to someone who doesn't do hundreds of these per year. I am no prop professional, but you are missing some metal there. It is going to be terribly difficult to balance.
Now you are going to have a prop that vibrates and you are going to be out $150.
Best wishes that you can report back and tell me I am messed up for giving prop advice without being a professional.