I was able to install the base-powerpc files from the tar file on a G3 333 MT and boot using the 2.1.115 kernel from Paul Mackerras. I tried building the kernel from kernel.org, but, I had no luck.
Like Alex Romosan I used linuxppc and mounted the partition with debian on it, but I couldn't get quik to work, so I used quik under MacOS. I used the swap partion that I normally use for linuxppc. Excellent work you guys!