Took delivery yesterday.
Today I'm going to install NOS correct tuners. The neck is stable and straight - no need for a reset job this time. Also needs a correct w/b/w nut (actually just a string spacer) just for aesthetic reasons, and a new bridge - someone filed grooves in the original bridge. Large bodied basses used a longer guitar bridge (3" between height adjustment screws) with 4 instead of 6 fret pieces, not the usual violin bass shorter bridge type.
The neck is 3-piece, like the '60 500/3. My '64 Senator is 2-piece.
With a TI JF344 set, the bass sounds significantly brighter than my '60 500/3 and '64 Senator, both unplugged and amped. A bit too bright for my taste but I'll let the flats age as they should.