phatnom 3 standard

Hello I am looking to pick up a Phantom 3 standard for my SO as her birthday is coming up soon. I will need all the accessories that come with the drone and possibly another battery if the price is right. I am also willing to hear offers for other models but I don't want to spend more than $500.

Every ce user has worst signal than fcc users and we are looking ways to make it better. Like installing antennas (safer way) or hack the rc and drone to force system to fcc mode (dangerous way). Okay we installed the antenna but system can give you more if fcc mode is on but hacking the unit...