as the licenses go, to be called Parmigiano Reggiano, it's starts at 18 months, and up, or so I remember. Mind you, it is Italy, anything can happen if enough euros cross palms.
You're already ahead of me, I still press by hand. I think you are living my dream, I'd LOVE to do what you do, have a small holding, River Cottage style.
Jealous man!