I can't decide if May is cleverly faking a hard Brexit, in order to keep the Ultras quiet, but she will accept a kind of modified customs union, with 'frictionless' trade across EU borders. Or alternatively, she really believes that she can cherry-pick various goodies, and not pay anything back. Probably the second one, and no doubt, the Tories will be ready to blame everybody - the EU, Germany, France, Corbyn, if it goes pear-shaped. But the pear will be strong and stable.