A gunsmith with a wire feed welder can fill the holes but you can never make them completely gone. You can also use filler screws and more or less blend the holes but again they will leave evidence. The roll mark may be damaged too. If you refinish there will be difference most times in color at the repair. Good luck on the rear sight. The money sounds like a rifle that is in pristine shape...not with the noted detractions. But then, I'm not in Miami.