Then you shouldn't having any trouble showing that.
I have posted a record of a 1937 meeting where Hitler briefs his head henchmen that he may want to move to east as late as 1943-45.
That will give you some place to start.
Hitler --thought-- the Brits and surrender monkeys would acquiesce in his slamming Poland, just as they did when he took Austria and whacked the Czechs. He thought them totally spineless.
He had no plan for world conquest, just a plan to attack the Soviet Union to get the Lebensraum he needed and deserved.
Hitler was first, last and always an opportunist -- a trait he shares with Saddam Hussein.
Walt