Thanks, but I already got those (including at least a dozend of others). Though most are either lowres or from more or less the same direction. Also some of them seem to be slighty different from the original from the movie (not much, but the differences are visible).
I also found a 17K poly model, which is a rather good reference, at least for the middle and the back-part. But the front on this is also a little strange (and has no hangarbay), thats why I hope someone can give me some more movie-shots (mosty from the nose and the part, where the middle-parts is connected from the back).