Water damaged iPhone SE logic board

(English is not my native language so I appolagize for some headaches that I might cause)

Hi everyone, I’m trying to fix my teacher’s iphone se that has been dropped in water and soap… I’ve already removed the logic board from it with the EMI Shields; and i’ve cleaned the logic board with 100% alchool.

With that I’ve found, with the help of a app called phone board, that the L3300; the T5301_RF and the L2000/2001/2002/2003 had sort of stains on them.

Is there any way to buy this components/ fix them?

Thanks in advance for helping me

ps: The phone is completely dead and neither the screen turns on nor it is recogneized on iTunes; I’ve noticed to that the battery doesn’t warm up even after 1 hour of charging

Images- L3300/T5301_RF: https://imgur.com/9IKsoWw

-L2000/1/2/3: https://imgur.com/LZSHbZk

Thanks again :)