When you say "recreated" crawl and credits for both adywan and Zion, do you mean they were created from scratch, or cribbed from another video source?
My GTR version is NTSC (which surprised me), has a menu with animated scene selection, English/German audio, and the credits cut off just as they start (which points to the XviD as the source).
I also found that I have a copy of a telecine version, easily identifiable by the typical on-screen noise (white speckles occasionally). It's also a tad dark. I'll have to check it later to see what is has for crawl and credits (if anything).
I gather that Zion's version is the best copy of the theatrical version we know of at this point then, with the third adywan release being a close second.
--SKot