It looks like you're new here. If you want to get involved, click one of these buttons!
I also have water damage on my MacBook. I purchased a logic board from you. Upon further reading I wonder if it also might be the keyboard. IFixit sells a complete upper case but it is $180. Do advise trying to replace the keyboard in my existing case since I will have nearly disassembled the machine anyway. Keyboard prices look to be about $20 on eBay.