A lot of interesting new stuff in this article...
http://www.theguardian.com/politics...ole-in-public-finance-if-uk-votes-to-leave-eu
Bear in mind that, in theory at least, George Osborne had all the power he needs to put forward that revised budget. There's nothing Vote Leave can do to stop him. And once it's published it's official Tory policy, even though most of it would almost certainly never get enacted because backbench rebels would combine with opposition MPs to vote stuff down. (Some stuff is under the Chancellor's remit and doesn't need approval.)
In other words the Remain Tories would rather blow their credibility with the electorate by breaking their manifesto promises, rather than lose the EU. More selfless than I expected, and just goes to show just how insanely high the stakes are!
Notice too that Vote Leave want to punt the actual "leaving" of the EU out to beyond 2020 ie they're so unconfident of being able to deliver a good deal, they want to run out the clock on this full Parliament first...