You would have to make sure you were buying the complete Devo set up. Adding any board that would allow you to use regular RC signals would work. Clark, DBC2/3, IBU,.
However, to be Clear, a $200 Fatshark goggles set up could be used with any system, even the standard Taigen or HL could be used.
http://www.hobbyking.com/hobbyking/s...d_5_8G_TX.html
Or $300
http://www.hobbyking.com/hobbyking/s...d_5_8G_TX.html