I know this has probably been posted around everywhere (it's been around for a few years) but someone scanned the spaceworld booklets for 1999,2000 and 2001 http://64dd.net/modules/news/article.php?storyid=193
FYI, site is currently is closed, so you need to go through webarchive to get links to archives. Maybe, better reup mirrors for future. https://web.archive.org/web/20140416073814/http://64dd.net/modules/news/article.php?storyid=193
Ahh, right, 64DD.net was shut down. In the words of the owner: "the decision to close it was not as easy to make as for Planet 3DS. But the forums have been pretty much dead for years, the code is rotting and the site is overrun by spammers. It was only work and not much fun lately." So I don't think its coming back. Someone should mirror anything on there that isn't available elsewhere.
These three archives are downloadable currently, dunno about anything else including images, text etc. Webarchive tends to save things randomly, and it's especially painful when you look some japanese game developer site copy on it and you get like 20% of content or less.