Nice! I'm working on a similar project, an old Zenon that was my dad's. Improper storage pretty much destroyed the guitar, and I binned the neck years ago - wishing now I hadn't. All I managed to salvage was the pick guard and electronics, but the volume pot is missing and for the life of me I cannot figure out how this thing was originally wired. I'm assuming it made perfect sense in 1960's Japan. Gonna make some templates using big print and make a new body, but I will most likely use a tele style neck. Your build looks great - I love that GFS trem. Are you having any issues with the flat fretboard? Mine had no radius at all on it IIRC.