Despite several more attempts at it I wasn’t able to improve upon it, so that is the best version I have at the moment. I believe Darth Lucas and Yotsuya were also working on projects featuring the '81 Crawl, most notably this one:
http://originaltrilogy.com/topic/Remastering-the-1981-Episode-IV-TitleCrawlFlyover/id/49668/page/1
Perhaps they had better luck?
That little project has been on hiatus. I kind of have to start over. Thanks to Poita, I have a better version of the starfield (the part that is virtually missing for the 81 crawl found with the SSE). To get everything back the way the many home video versions (as per the LD archived versions of the pan & scan UK LD, the Japanese Special Collection, and the Definitive Edition), it really has to be remastered. The planets are easy to get (I now have a copy of the original matte painting) and the text is a mix of the title from Empire and the crawl from the blu-ray, but the flyover portion is proving difficult, though I have an idea how to do it. Getting the blue engine glow right and recreating the missing final frame don’t help. But a little time and some creative use of software should do the trick. Hopefully I can have something closer to the original soon.