If it were me, I would buy some clear coat touch up, touch up the bare spots, maybe even use some really fine sandpaper/polishing cloth after you do that, and call it good. Main thing is seal up the crack so the aluminum doesn't oxidize and corrode worse.
Jason464, It is not a reasonable amount of money to have it fixed they want around $200.00. I can get new rim for $130.00 on ebay no point getting it fixed will just keep it way it is.