I have a found rose that was rescued from a demolition site 15+ yrs. ago. It resembles the photos of your rose very strongly but yours is the only one. There are a couple others that are a "maybe" but the rest do not. Our rose is definitely fragrant, very upright, with a tendency to blackspot.

This is not Safrano, too many petals and too orange

Lovely garden!

Fun!

Hopefully you'll know soon whether your experiment is a success.