The Type 26 buy would be money spent within the UK (at least for the moment....) whereas P8 is spent overseas involving exchange rates so is more likely to be at risk.
TOFO does raise a significant point though - should the MOD even consider placing a Frigate order in Scotland when that country is considering independence and is it too late for the yards at Portsmouth to bid for the contract?
It's a pretty big leverage point to the possible Scottish split from the UK in losing the contract and the revenue it produces, it also would make the Scottish claims on part of the Military less attractive at the split, after all, the wicked witch couldn't try to claim them for Scotland or factor them into the equation if they haven't been built.
..