I fear this is where we diverge. I am by no means convinced that they would, having seen numerous examples of this process failing spectacularly when logical analysis meets political reality. I'm also pretty sure that the IED threat on such a scale would have been a very long way down the list of potential threats, so a request to stockpile large numbers of PM vehicles would have been both low priority and hard to justify.
The risk was obvious and documented early, the mitigation was provided late. I’ve always been convinced that the submissions that were prepared in 2003/4 would have secured funds if VSOs had engaged to drive them through.
My comment re Stonkers post was not directed at you in any way either.