No idea... A number of years ago, I bought an Ibanez Premium. I didn't like the tremolo on it, so I had a local guy swap it out for a Floyd (ended-up hating that too). I suspect it took him about four hours, as it required a bit of routing, and he charged me $450.00 Based on that; I would estimate that around 100 bucks an hour, times 4 hours to do the work I'm proposing... probably 400 - 500 bucks in labor. It was the above scenario (paying $450 to still not be satisfied) that annoyed me, to the point where I went online and started learning everything I could about rebuilding guitars. Since then, I've modified every guitar I've bought... It's much less intimidating, once you've done a couple. I would also caveat this, by saying; I have an electrical background... so that helps.