TangledThorns

I'm a long time Macross fan and looking to buy original Macross art by Shoji Kawamori and Haruhiko Mikimoto. I saw they had their own PR sites but didn't see anyway to contact them directly. I tried Google and so what is my best option besides flying to Japan? I checked the WTS section here but didn't see anybody selling original art. Any help to get me started would be great!!