Broken Butterfly Clips and Keys

Hi I have a 13" Macbook Air 2018, model A1932, in the colour Space Grey, and two of my F-keys (F8 and F9) are flimsy and don't even hold on. A while ago, I accidentally removed them the wrong way, mistakenly thinking that it was the same as removing any of the other letter or number keys, causing them both to lose the hooks in the keys themselves as well as the white butterfly clip have the stems that the key hooked onto broken.

Where could I find a place to buy new keys for this model as well as a tutorial on how to replace them. I've watched some tutorials and noticed that the white butterfly clip can easily be removed, but my model of MacBook has a silicon covering on it, so I'm just wondering how I could ever fix that.

Thanks!