If it's that that's stopping you getting the finish you want, (and you may have considered this already) could you route / chisel out the chip and glue in an offcut?
It’s probably possible to graft in a chunk of wood, but I’d always notice it. At this point it just needs hiding under a few layers of nitro and pretend that was always the plan.
No, the chips are gone. The worst bit is at the upper side-wall of the neck pocket and it can't be hidden, sadly.