I never appreciate why some repair shops rejects water damage Handphones for example and why they charge so expensive until I repair one for myself. Imagine the Pins of the ICs, it look normal until you lightly probe it and it crumbles like dusts, I am serious, pieces of metal, physically looks alright but crumbles like dusts. All the traces and thru holes were a gonna. Multi-layered boards, I can forget about tracing. Just too much engineering manhours and not viable.
But yours IMHO, don't look that bad for "NOW". But you cannot waste anymore time. You need to neutralize the corrosives on the board quickly with baking soda + distilled water paste. Few of the components, need to be lifted up, neutralize and resolder. Maybe few pads need to be jumpered. If you are handy with Hot Air Gun and are confident in working with SMD components, you have a microscope, you can save yourself alot of money. Careful DIY, probably 3 hours of your time, less than $0 ~ $20 on components, that's my projection.
But if you had never worked with small SMD, then the only choice is finding a real "FRIEND" to do it for you. If you find some people in this blog, just be aware that some are "merchants" and some depends on repair for a living.
So there you go, 3 hours of Engineering Hours + $20. My projection for DIY.