My guess, R Aharon would be looking at google maps, planning a remote location for a place where Torah learning can happen without distractions. Maybe WV or KY.
As an insight into his thinking, one prominent South American Rav was thinking about moving to Israel. He asked R Aharon and he replied: I think the Jews in your country still need you. Maybe later, we will both go to EY … When many years later, that Rav finally decided to move, he encountered R Aharon’s levaya joining him on the flight from Paris to TLV and recalled that conversation.