I've made a few mods to the Harley Benton P-Bass.
Original parts are neck, neck plate, jack socket, tone control and many screws.
I have a custom engraved nickel neck plate on order...
(I also have a s/h neck on order so soon I will rebuild the original bass but with a different neck) ... it seemed daft not to leave it as a pile of bits for the sake of £30.