Hello, I have a pretty cool LP that I bought used about 28 years ago for $325. I've probably only played 40 guitars in my life but from the first strum it was, and is, the best sounding guitar I have touched. It just sings forever, even unplugged. I've always known it was kind of an odd (black) bird because it has elements of a Studio, Standard and Custom. In all this time I never new the model name. Until last week I found out that it is likely a mid 80s Studio Custom. So, I have a cool guitar that needs new frets (maybe pots) and a serial number. How can I found out more about the details and production history of this guitar?