I've got a dual 133 MHz BeBox I'm working on fixing up. I bought it from a local guy, it had been bricked some time in the 90's by a bad firmware update. Another BeBox owner on #vc IRC got me the flash rescue floppy for BeOS PR1, and that's gotten it as far as being able to actually boot the NetBSD 8 installer. Apparently the floppy rescue is often unreliable though, I don't get the Be logo on startup, and BeOS doesn't want to finish booting.
Is the bios socketed? I have a 66mhz one (at least he motherboar, PSU and metal box) it might be possible to pull the firmware from.
It is indeed very interesting hardware, with an interesting OS to go with it. Growing up, a friend of mine had one -- his dad worked for TWA as a programmer and had convinced them to get him a 66 MHz BeBox. When the 133 MHz version came along, my friend got the old 66 MHz one.
Very cool! Does the IO board look hard to duplicate? Surprised the fandom hasn't made new ones like the Amiga people. - Ethan