HK Multirotor Control Board Gyros

I decided to rebuild my tricopter and was unbolting the control board when I slipped and destroyed the roll gyro :mad:
I have already purchased another board but didnt realy want to throw this one away for such a small thing. So I was wondering, where can I buy a new gyro from, how much are they (roughly) and how easy are they to replace using a soldering iron?

Oh, Its this board.
HobbyKing Multi-Rotor Control Board V3.0 (Atmega328 PA)
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