Chosen Solution
What needs to be performed to remove and replace a keyboard?
Here’s a video on replacing one of the newer keyboards with rivets: https://www.youtube.com/watch?v=e96zY4c6… When getting the keyboards pick a supplier who sells it as a kit with replacement screws
You will need to remove all and everything to access the keyboard. Have a look at this guide to get an idea of the tasks you’ll have to perform. This is the guide on iFixit that gets you as close as possible to your goal MacBook Pro 15" Retina Display Mid 2014 Logic Board Replacement
Check this video out for detailed explanation on how it’s done https://youtu.be/_yfRgs1VXKo