It is a fairly large amount of work to get a gyro like this working when there are only a few days left in the build season, especially if you don't have much experience with I2C, but that's not to say it can't be done.
This is an Arduino driver for the gyro, which will help with the register mappings and addresses.
This is a driver I wrote for another I2C gyro, which I hope will help you with understanding how to port the Arduino code to the roboRIO, even though it's in Java.