Onevan - since the MoD are paying 70% of the cost of SARH do you really think that £80mil in rent (8 flts x 25 years) is actually going to change hands?
There is a sim building ready for a new occupant at Valley and all the infrastructure, minus the aircraft, required for through life training - including most of the personnel who just need to change uniforms.
The rapid turnover of mil crews simply won't happen, those that are in milSAR post 2012 are likely to be the old and bold who have no desire to thrust for a career or go to Afghanistan. There is no point in sending new lads and lasses into a predominantly civilian environment and role just for a tour and then have to pay to retrain them on Chinook/Merlin.
Since it looks like the aircraft will be civilian registered, all the mil pilots will need licences which adds to the cost and would tempt first tourists to get theirs and leave.
The RN might do things differently since it is likely that Culdrose will be one of the military-heavy flights along with Valley and Lossiemouth.
The IPT have already offered up cost savings (12 hour ops at Boulmer and Chiv) to try and preserve the bidders profit margins - what will be next?