MacBook Keyboard Spill Not Working

Macbook was on when around half a cup of saline solution was spilled on it. Tried to wipe it off right away and the laptop stayed on. Keyboard wasn’t working so the laptop was still on when I flipped the laptop upside down. The keyboard eventually started working so I turned the laptop off but still kept the laptop upside down. Used a blowdrier to dry it for around ten minutes. Now the display works perfectly fine but the keyboard is non functional. Touch bar doesn’t turn on, keys can’t type, and trackpad doesn’t work. Apple store said repair would be $1000 but I feel like I could fix it myself for less. How should I go about fixing this? Thanks!