You could get them stripped and anodized. They are heavily alloyed aluminum, so colors might be limited, but this would definitely cost less than $400 for both. Anodizing results in a very unique and vibrant finish when done right, it is also guaranteed that it will be perfectly evenly coated. The common royal blue anodize is very much like the new color of you bike, though i would ask for samples first if you try to match the same colors, it gets awkward looking when they are close, but not right on.
You can also just get them painted. That would be the cheapest, though not the most durable.