The Carson mod and a 'mid-life' upgrade to the avionics would keep the Sea King going for many years with increased performance and range, there are S61s out there with 30,000 hours on and our cabs have less than 10,000. The cost would be significantly cheaper than the SARH project and retain the healthy military presence (and the UK homeland security element it provides) in UK SAR.
The role kit can be removed very quickly to get the weight down in order to get the full 6300 lbs in - certainly much quicker than fitting extra tanks to S92 which don't seem to have been certified yet and without reducing cabin space. Our normal zero fuel weight is around 15,700 which gives us 5,700 fuel to our max AUM without removing anything and this will still give us a RoA comfortably above the S92's paltry 205nm.
As for GB - I didn't vote for him but then nor did anyone else
BTW - it's 'knackered' not 'nackered' - is English not your first language?