Curious what serial number this is. It reminds me of 75-183, with the curved rosewood fingerboard and single screw pickups, also the bridge. But yours is long scale! Imho this one (yours) is from the very nicest zebrawood log. 76-270 of mine is the one it matches most. Interestingly, the neck on 270 also has walnut veneers, only with a cherry center veneer that matches its cherry core.
I have, ahem, three zebrawood alembic basses, but I still wish I had yours!:) I can’t imagine someone won’t buy it. And with the Halliburton!:) Jimmy J do they still make those?