RC Hovercraft

Using Arduino Networking, Protocols, and Devices
1

Hi!

I'm designing a RC Hovercraft, but I need some help.

First of all, can I program some Atmega328s with Arduino bootloader putting them on the Arduino board and using the Arduino IDE and then use these Atmega328 on a breadboad with an external clock of 20MHz?

Moreover, the radio control will send to the hovercraft 4 boolean variables and 2 PWM signals, while the hovercraft will send to the radio control 5 PWM signals. What should I use to handle this data traffic? Cuold I use two Xbee modules?

Thanks a lot!