My understanding of the WSOD is that the controller fails. (not the LCD panel itself) so depending on how the LCD unit is packaged you may be able to separate the controller from the panel. (some soldering might be needed, depending on how the panel is connected to the controller.)
I have never had my 770 apart, but I would have about a 85-90% confidence that I could do the swap, and that it would work, not having seen the innards myself.
I think that for what he is asking it would be worth a shot.

I someone knows where I can find some tear down photos of a 770 I could be more certain. ( I am lazy, and don't want to search)

-ezra