Used godin fretless, grooved fingerboard ...

[4Mal]

Recently landed a used godin fretless acoustibass (described in the gfs ad as an A4) from the gfs here. The body is near to immaculate as described. The fingerboard is pretty badly worn though.

My thought is to have a luthier do the work. Seems to me that it will need a new nut as well given the amount of fingerboard that will have to be removed. Any guess as to what this sort of repair usually costs ?

Thanks!