Chosen Solution

I have a 24" that was damaged by a lightning strike. Apple said is a bad logic board. They checked the power supply and it is still good. I want to put a new logic board in it and hope to pull it out of another machine with say a bad screen. Which models could I do that with? If I had to just by the logic board and move my CPU and memory, will my cpu and memory fit on many different models of logic board? I am a newb to Macs so I dont know parts like I do on the PC side.

i understand your effort - but it think you will be paying more then necessary. faulty imacs are still pricey. i would sell the faulty imac on ebay and a used working one - it will not cost much more than getting a faulty imac (and never forget - many sellers are not telling the truth about their computers)