Does anyone have a link to a hinge cover replacement part or guide?

The plastic black hinge plate on my Macbook Pro mid 2012 cracked. The hinge is still fully functional but the black plastic plate over it is cracked.

I believe it is called the clutch cover from what I've searched and learned on this site. Does anyone have a link to the replacement part or a specific guide on the repair of such a thing? Does this specific part have a replacement for sale somewhere or would I have to replace the entire display or case assembly or something?

I actually found the specific part on ebay.

But, does anyone have a specific guide that would be helpful to this repair? I am not a professional but I have some experience, I'd like to be sure to have as much information as possible before I open stuff up.