The worst part of the bass is the wood filler in the fret slots. I would dig that out with a dental pick or a scalpel. I would get a radius block and radius/re-radius the fingerboard, which will hopefully generate enough wood dust to repair the chip-out around the fret slots. I would inlay the fret slots with plastic or hardwood veneer. before trimming the veneers I would fill the chipped-out areas with the wood dust and saturate this with superglue. I would then trim the veneers and radius the board.
I have all of the stuff, and the inclination, to make this work. However OP might think differently.
I have all of the stuff, and the inclination, to make this work. However OP might think differently.



