a voodoo card seems like a bad idea for this.. but some sort of move hideout to a different port option ought be available.
we all just recently set up our hideouts, and only now realize where we might prefer our hideouts were. for hideouts to remain in a less than ideal placement, because of a lack of PRACTICAL understanding of the information available at the moment of construction seems like it could/should have some 'wiggle room' so to speak.
i think a classy way to do it would be to make building for this, like a dr who-mobile, or that wheel thing from Lost. first move is relatively cheap, but still expensive, mebe 10 million of combined resources, with an upgrade beyond that either being not an option, or absurdly expensive, say 50 or 100 million. at each level the build has a charge that allows the hideout to move to another port.