The short answer is no. It way to integrated with itself to be converted over. Probably the best thing to do is to either get the logic board replaced by a service provider, or hunt ebay for an emac with a busted screen, and loot the logic board out of it.

Be aware though, that last suggestion can be tricky since there are two distinct models of emac, and they both have very different boards.
Electricity tastes good. No, seriously.