| A good luthier would be able to fill the hole with a pice of wood, but I'd only recommend this if the bass is painted (refinish would be required), or else you'd see the the mismatch in the wood grain.
Why not leave the pickup in there as a dummy?
Or get a matching new two-pickup set. You can still disable the neck pickup, but I'd install it properly so you use it just in case. You can always dial in body pickup only.
__________________ "El sueno de la razon produce monstruos." "The sleep of reason brings forth monsters."
Francisco
Goya |