zero G, you dont really have to 'zhng' your MIM bass to that extent.
use the same neck. remove the frets yourself, buy a thin maple strip wood or rosewood, slice it to fit the fret slots, u will need to use some wood glue and be very careful. once that is done, sand the fretboard smooth, clean with wood oil lightly, then go to the paint shop and buy clear marine all weather lacquer. this is used on wooden boats to protect the exterior wood.
either use a brush or spray on evenly, after evry coat use the finest sand paper to smoothen it and after about 6-8 coats \, the final caot, wet sand paper then buff to shine.
use a good passive bridge pickup (SD antiquities II or DiMarzio ultrajazz) and keep it passive, no on board electronics.
and you saved yourself a bundle of cash to spend on other basses.