I charge 25+string cost where I work. Extra 10 if it's a Floyd Rose. With that the guitar gets a complete cleaning, I condition the fingerboard, polish the frets, string it up, adjust the neck, adjust the action, set the intonation, adjust the pickups if necessary, then polish it up and clean your gig bag or case. Small things like slightly enlarging the nut slots to better accommodate strings, minor fret work, or getting rid of nasty burrs at the saddle are no charge. Large issues like extensive fret work are an hourly rate, depending on how bad the situation is.