You forget my good allies: Portugal. We will squeeze them in a vice of steel!!!
Would you believe a vice of wrought iron? A Vulcan death grip?
The tentative plan is to move along both coasts (placing the odd port), then drive for Madrid. But I won't really think about it unitl I get a better idea of Vichy/surrender.
The prize of access to the Mediterranean is worth risking a fair bit, and I am nearly a year ahead of schedule. All I want to do in '40 is mop up the Balkans and maybe Norway. The opportunity to take Egypt and close the Suez is hard to resist, as is linking up withthe Italian Fleet to crush the British Med Fleet. And sub range into the Indian Ocean!