You can certainly drive to the nearest city served by AA, then fly them from there. But I don't understand what you are after. If AA does not provide convenient service from your new location, then try and get comp'd to equivilent status on a carrier that does and build up your account with them. If you want to use you AA miles, then as I say, book your flights from the nearest airport served by AA or AAEagle and fly from there. It's not as if you are now resident in Outer Mongolia, thousands of miles from the nearest oneworld gateway.