If it's any help, much of the motorcycle head tooling works great for Aveo heads! If you have access to any. The valves are pretty tiny, as are the guides. My local shop has a Serdi machine with the smaller cutters.
I am going to wait until Frank responds and I am thinking that he maybe too old school (big block V8s) and not setup for modern cars. So you just gave me some excellent advice. I may have to go to a motorcycle shop.
Please do not power off, firmware update pending.....