iMac Need a LCD

I have imac 27' 2011 model.

The lcd works just fine but it has a little damage and there is a vertical stripe on the screen starting from the bottom to the top..

i am searching for a new LCD or a used one(without damage). I know thats its very expensive but i can afford that. I have searched every site but none of them has this type of model.

LG LM270WQ1(SD)(E3)

Is it possible to use a another LCD model and switch the mainboard cable of my old LCD to the new one ? or must i buy the M270WQ1(SD)(E3) model ?

does anyone have experience with the iMac lcd's ?