[Steve Carlton]

A whammy bar on an acoustic guitar sounds like a bad idea to me, unless you want to honor the old mods. Maybe it was thing at one time, I don't know. But I'd be concerned about the extra tension being generated and having the structure of the guitar crack or fail. If you want to get another one, Gibson luthier probably knows where to look it, or you could post in The Acoustic Guitar Forum. I’m sure there’s a Gibson forum as well.