Yeah, the GOUT uses the 1977, pre-Episode IV crawl. It's the only home video version that does.
For the purposes of this project, I'd absolutely leave it that way. A selectable crawl would be nice, I suppose, but as DJ said, this is meant to be the best representation of the 1977 theatrical cut as can be had, and using the 1981 crawl would undermine that, in my opinion.
I'd still like to have it for myself, so again, if anyone knows where to find Moth3r's PAL LD preservation, PM me.