Plastidip them black it wont take more than an hour and shouldn't cost more than ~$35 the cans are like 6 dollars at the home depot. Then you can always peel it away if you decide its not to your liking. Or go through with the real deal and have a profesional finish applied. My buddy and I plastidipped his wheels and to both of our surprise its been 2500k miles and they are holding up great!
The "blackout" thing.... I did it with my FJC and it looked cool, but I think more subtle works nowadays. Don't paint them black. I plan to swap mine out for those same wheels soon.