If you can determine if that arm is the same as US, I work with several Brazilians that come back to Brazil frequently. Could be much easier to locate in USA and carry on a flight and ship to you from within the country than to ship from outside the country[/QI am on a tight budget and have many other parts I need to buy new from local imports, these days the best way would be if someone from the forum had one and sold it to me sending as a gift, might not have duties...
