What is the cost? and can I purchase them already painted to match my RX8 color?

You can buy from japanparts.com or evo-r (they are basically the same) its a replica of the r-magic eyelids. Japanparts sells the authentic ones but i think it comes from japan.

I got mine from Japanparts.com and they came painted and shipped rather quickly from Japan...

how long did it take you to receive? 2 weeks?

yea about two weeks... they were air mail... when you order from japanparts.com they ask if you want it by ship or air.... I also got my other Rmagic pieces in the same amount of time...