Barney,
Flyaway infers a proper unit production cost - and we know that that is in the €60 m/£42 m ballpark. That's really not disgraceful or extravagant enough for the usual motley crew of slack-jawed 'Phoon-haters
Even if we were to talk unit PROGRAMME costs, then we can't get to the kind of figure you use. All of this: "Any way you slice it, Typhoon is already a monster of a money-pit" is just so much witless and tiresome buffoonery.
If production is limited to T1+T2 (about 144 aircraft) and we pay the full costs for the 232 aircraft programme, then the Unit PROGRAMME Cost (not the flyaway, numbskull) might reach £132-139 m. That's worst case.