If you're making a portable you probably need something to watch it on. (Unless you want to guess what's happening in the game, but I wouldn't advise that) Anyway, this forum is your "Hacking a pocket TV/screen" one-stop solution. Share your experiences and knowledge here.
NES_fanatic wrote:What about the absurdly rare "Game Boy Light"?
I sold one on ebay a couple months ago. It went for around $50 IIRC, not too expensive. Of course, I've seen them go for $200 in "mint" condition with boxes.
American gamer stationed in Japan, PM with your import gaming desires.