>>121
Ah, I just found one of the portable Edwinsen you mentioned. I'd expect there to be some random FTP or open-directory somewhere if anything. I don't have much time to search currently but maybe someone else knows what's up. Here's what I got just now, not quite what you want:
https://birchwood-abbey.net/~matt/Scheme/
http://mumble.net/~campbell/darcs/