Hi Rob, nice looking kit ! That is a problem with the uncentred neck screw holes. Do the 2 holes on the treble side line up with the neck plate or all 4 holes are out of alignment ? I would find some small dowel or stuff a heap of toothpicks in the holes and glue and let dry and then sand flat, at least if the new holes are close to the old ones there will be some meat around the new holes.