Everyone, give me a few days to sort out all the stuff. I also would not want to send anyone anything that didn't work (unless they don't mind it being in that state). So, once sorted I plan on powering up things like the motherboards to see if they work.
What I can tell you about the Rev 6 2000 motherboard from my initial cursory inspection is that it A) had a mouse living on it (I've cleaned off his additions to the components) and B) the back side of the last two ISA slots are a little mangled. Haven't put it to power yet to see if it functions.