Finally the long awaited LCD showed up. Now I can double check the measurements from the datasheet and can find out what's needed to run it.
It's a nice thin 5" 800x400 tft from Eastrising Technology. The controller is also nice and small.
After some quick probing i think I can run it compleatly of 3.3V.
For Testing I quickly had to get my trimmed Wii running, as I didn't have any other A/V component device anymore (A problem I never thought I would have). But after a few secinds of panic, after nothing happened on powerup and the sudden realisation, that i forgot the U10 Wire, everything worked great
Dont worry, the dirt and scratches are only on the protection film. In reality everything is nice and crisp.