Where to go for a 2004 Ford Focus Trunk Latch Deck Lid Lock w/ Emergency Release OEM?

I need a 2004 Ford Focus Trunk Latch Deck Lid Lock w/ Emergency Release OEM. Or here is the deal. I have a 2004 Ford Focus. I need the trunk latch since mine is broken.

What route would you suggest to getting a new one.
If you have bought your own car parts before, where do you go to get them?

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