Hey zayfreg! Welcome to unityninja. Buenos Aires is a really cool city, I've actually been there once Thats sounds like a really cool game you're planning, can't wait to see what you make!
If you have any questions at any time, please don't feel shy to ask in the help section, or request help on anything, there will be alot of us more than glad to help you out. Or you can PM me, or any moderators on this forum, we'd love to help!