The problem is that you’d need the quarter-million dollar electron microscope to test your reverse-engineered modern version, and if you get something wrong and you fry it…
That being said, I wonder why labs don’t just make a VM. Hardware passthru is definitely a thing, parallel port cards exist (as do serial port) and you can back up a VM to whatever modern storage you want. Maybe the problem is proprietary cards/connectors? PCI-X or older?