I was able to disable Password Security using Norton Disk Editor (as described at securemac: https://www.securemac.com/powerbooksecurity.php).I took some pictures, I'll write it up when I have a chance.

I didn't open the display up yet, but I'm pretty sure it'll be this unobtainium IBM panel. It's never been my experience that panels will use the same connectors or be compatible at all--physical dimensions, backlight location, connectors, pin outs all vary drastically.

Such a bummer that the display is bad, almost everything else is good (just the trackpad button is bad). I think the battery even works.