As a Gunsmith I will give you my opinion. If you want it to look right have a pro do it and look at some of his work first! The polishing is ever thing, NO buffing wheels should be used and all polishing should be done by backed wet or dry sand paper. It is sort of like sanding out a custom paint job. If the guy you want to do it uses buffing wheels walk away!!!! You might get a real shiny blue job, like black crome but that is chincy and you will get rounded edges and smeared lettering or engraving which is a sure indication a hack.