Sourcing a Built in Keyboard for MacBook Pro 2012

I received a MacBook Pro and the Built-in Keyboard is not working due to the previous owner spilling something onto it. Although this site is great, Ifixit does not sell the part.

eBay and Amazon offer the keyboard but with inconsistent reviews of the products, where some users report the product fails after a while.

Any Recommendations on where to a source the part? I don't want to spend money on some Chinese reproduction and have the keyboard fail again after all the work of installing it.