Re: pickup suggestions for epiphone dot!
Looks a bit to difficult to install new pickups into a DOT. I might have to pass or see if my tech would do it.
Epi Dots are nice guitars, and I've had a few of them. It's very easy to swap PU's and electronics in a 335 or other F hole guitar. I've done it a few dozen times. There's a number of old posts here with detailed instructions on how I do it. Takes about 5 minutres to get all the pots back in.
As far as PU's, PG's are clearer, brighter, and have much less tendency to be muddy like '57's can be. You're
much better off with PG's. If the bridge PU is too bright (sometimes a bridge A2 PAF can sound 'ribbony'), try a roughcast A2.
If you want to hang on to the stock PU's for a while, take out the wax! For no justifiable reason, Epi HB's are jammed full of wax, like a bar of soap, which muffles the tone. Scraping most of it out opens up the tone. You could also swap magnets while you're in there (to A2's) and see what you think.
The benefit to bone nuts is the easy movement of strings thru the nut slots. Tonewise, they only have an impact on open strings, so unless you do a lot of folk guitar chords, you won't hear much, if any, difference.
There's no reason to have any fret work done unless the frets are worn down. On a new Epi, they'll last years, maybe many years. Of the many used Epis that have passed thru my hands over the years, I've only seen one with noticeable fret wear (an older Korean one), and I was able to use a file and level them myself.