Just went to install the 3-a-side Sperzel locking tuners on my son's les paul. The tuning holes need to be widened, new holes need to be drilled for the sperzel screw-pop in type thing. The problem is a) I don't know how hard this would be b)I'm guessing it would be expensive (the tool for drilling the small hole i need is 90 dollars on stewmac) and c)the hole that needs to be drilled is really really close to the existing hole where the old crappy tuners screwed in. Is there a better set of tuners I can get that won't require any drilling at all? Or is this actually an easy and fairly inexpensive way to do this? Any help appreciated.