An F-104 with modern avionics and engineering is an undefined, non-existent airplane.
Historically, there are few aircraft that fit that niche. (Mig-25, Mig-31, F-104 as you said etc). It would be cool to have a modern interceptor like that (F-15Ex with the pods, CFTs, and pylons removed??), but there's no existing solution that fits what you seek.
Historically, there are few aircraft that fit that niche. (Mig-25, Mig-31, F-104 as you said etc). It would be cool to have a modern interceptor like that (F-15Ex with the pods, CFTs, and pylons removed??), but there's no existing solution that fits what you seek.