Could the RAF resume the nuclear deterrent as a cheaper alternative to Trident?

[malcrf]

So, in a nutshell, designing a new medium or long range bomber from scratch is as cheap as new building an existing design?

So we may as well start from scratch even when the old design gave acceptable performance characteristics?

So the Americans with the B52s and the Russians with their Bears have got it all wrong? And haven't the Russians just committed to new build Blackjacks?

Jeez I've completely missed the point!