Water cleaning is an industrial process during the making of !!!
They are all dry now. Take off all batery.
Maybe the internal be with you ;-)
So now, buy quickly some true electronic contact spray cleaner (better the one that content a bit of oil) and spray them.
Use a teebrush full of spray for each socket and chip, and around each component to take off any paper particule.
If you also got an air-pulser use it !
Let it dry 1 day, and restart the operation 2 more times.
About the floppy drivers, you can spray them (mainly the 2 motors make them turn smoothly with your fingers !!) but not the head with a spray that content oil. Use a "dry" contact spray cleaner with a smooth coton or isopropil alcool.
About the monitors it's about the same but :
don't spray on the tube, it content "grafite" that is needed ! You may need to buy a "grafite/carbonate" spray.
Be gentle when you'll clean/brush the brown/orange wires at the end of the tube.
Change the thermal paste that were use.
About the books, curve them a bit and use an airdryer while opening little by little the book.
Sometime 1 / 2 s in a microwave can be good for books.
About the floppy :roll: push the metal shield and watch if there is some particle on them.
As you can read lot of things can be rescued if you are patient and strong