I just replaced the tuners on my LG-0...

They aren't original, but they look very similar. The screw holes don't line up, however, so you have to plug the original holes and re-drill.

They were fairly cheap, too, as far as tuning machines go.

http://www.stewmac.com/shop/Tuners/Guitar,_solid_peghead_tuners/Golden_Age_Restoration_Tuners_for_Solid_Peghead.html