[Prowbar]

I understand. Rivets can be drilled out and new rivets can be put in. They need to be removed when you install a new drum anyway.

If you have a shop that turns rotors, it would be worth asking of they can machine it with the hub still on. Maybe a good machine job wants to try it. If you put some nuts and spacers on the lug studs you should be able to reduce most of the chatter I think. Then it can be machined in as one assembly.

Remove the grease seal and wheel bearings and use a live center in the lathe to machine it.

Let us know how it goes.