How to replace individual letter keys on MacBook Pro keyboard?

I ordered a used (seller refurbished) MacBook Pro on eBay, and when it arrived I realized that they must have repaired the keyboard, because the /w/ and /e/ keys were switched.

I can’t find any guides on iFixit to replace individual keys on the original butterfly keyboard, and maybe I’ll have to contribute one myself, but I’d love to know if there’s a great guide out there, or maybe someone who’s done it before that can give me some pointers.

I’ve got plenty of experience repairing Apple products, and i’ve replaced other keyboard keys on PC’s, but this is a bit different I can tell just from messing with the keys (which are a little loose).

Thanks in advance!