Although money is, in general, the major issue right now I am not sure it will entirely drive what happens with SAR. Funding was agreed for SARH - if the MoD can find a solution within that funding line then that solution will surely be taken. The fact that funding is currently presumably allocated through the DfT not the MoD surely doesn't matter to the Treasury - it's all one not-so-big pot. A solution that sorts out the CHF, new Chinook, and SAR mess vaguely along the lines that tramp suggests might not be so ridiculous.