The idea of hand-crafting a solution like this (sort of a Frankenstein-image of the card) seems pretty rough to do properly. The idea of connecting a micro-usb cable to the camera (which I don't handy at the moment, while I'm presently in Ascona, Switzerland for a conference) is tempting, but my fear is that the camera just exports the internal card as if the camera were nothing more than the USB card reader, returning us to our previously unsolved problem.