Take a look at
, which is one of my favorites. In essence, this is the same process in making mirrors, and might be a good option for you. Within YouTube, if you search on "chrome plating," you'll see tons of products that do the same thing. The plating will withstand a small amount of abuse, so the final clear coat is key.
If you find a high shine metal spray (Eastwood dot com has a system available for about $200), you'd also need a rattle can or two of clear coat, assuming you don't have a paint booth or large compressor of your own.
Another option you have is stripping your current wheels with something that doesn't include water, and using finer and finer grit sand paper to make the surface as smooth as you can. Again, the final clear coat will be crucial (I emphasize crucial) or the stuff will rust immediately.
If getting this stuff in Peru is tough, look at 3m dot com, eastwood dot com, carquest dot com and order what you need through them. I've spray painted 13 inch Fiat wheels with two cans, and I had a little left over. If you buy three cans of spray on clear coat, you'd get good coverage and more than enough to coat the wheels for good protection.