Following some hints and suggestions around the forum.
I've gotten bitmap fonts from xfonts-wqy.tcz (Thank you, syun) working, at least to the extent that xlsfonts returns the proper font name. They don't seem to work out of the box for me so I copied one size to ~/.fonts, ran mkfontscale and mkfontdir(from Xorg-7.6-bin.tcz) in .fonts, then xset +fp ~/.fonts && xset fp rehash.
I loaded the extensions locale-col-zh (Thanks david.w!) and urxvt-daemon (thx peterc) from the repository.
Then, urxvtd -q -o -f @ shell prompt to start urxvtd as per the info file.
And then I called urxvtc -fn "font-name-from-xlsfonts-i'm-to-lazy-to-type-now".
I get a new terminal window (yay!) at that prompt I export LANG='en_US.utf8' or export LANG='zh_TW.utf8'.
Then I try and display some unicode texts from the web I downloaded.
... and no joy.
If anyone can give clear instructions on how to get this working, I'll write it up on the wiki, so people can start documenting other localization HOWTO's.
Thank you.
cheerio,
solorin