Oh, if we're going down this path just build some new Buccaneers...
Great plane, antiquated avionics, etc.
It's interesting that there's not really anyone shouting that the systems on Tornado need chucking out and replacing. If the systems are generally OK and don't need a whole lot of updating, why not re-use them, keep them in a Tornado-shaped arrangement, and clad them with a new build Tornado-ish air-frame?
I guess we could make the air-frame bigger, maybe sit the crew side by side in an escape capsule, give it bigger engines and lots of fuel for huge range. Just so long as we don't put the digits 111 into its name...