if you're going to polish them then polish and maintain them. Putting clear over polished alloy is a recipe for scabby looking forks in a couple of years. Laquer or paint needs to be etched onto alloy for the best durability and that causes discoloration of the part.
A mate has just done his blade fork lowers in black plastidip paint and it's given a durable, acceptable finish which stands up well to stone chips. If they do a satin silver version then I would suggest that as a cheap, home gamer solution.