Looking good!
Referring to you post #33 above re: tuner buttons, just be aware that not all button shafts are created equal. By button shaft I mean the little shaft that the button fits over and is screwed to. (I'm sure there is a proper name for it but I don't know what)

I learnt this the hard way. I've found that aftermarket no-name ones can vary greatly and one set of buttons won't necessarily fit all shafts. Even name brands like Gotoh can vary within their own models. At least IME, I had one set of Gotoh tuners that wouldn't work with another set of Gotoh buttons.

Just warning you so you're not too disappointed when the Chinese buttons do arrive.
Not sure how painting them will go, but worth a try I guess.