I've heard of strange things your's takes the gold medal!
Sadly, I don't have much hope for your system. Don't use any electric cleaners here as most have oil in them which will just make more of a mess!
You might be able to salvage the HD and RAM but you really need to clean things down with a high grade of isopropyl alcohol (85% or better). The higher the percent the better here as you want to use the alcohol as a dryer as it will pull the water out. let the alcohol evaporate by keeping the parts warm (sunny window sill) for a few days. The cross your fingers!