So I bought a couple of VERY cheap iBook G4s on eBay... one has a bad keyboard. Are the keyboards interchangeable between the 12" and the 14"? The keyboard is bad in the 14 but the one in the 12 is good - any reason I can't just switch them for testing purposes? Plus, the 12" keyboard seems plentiful on eBay while the 14's are few and far between (and more money). Thanks!