I'm pretty sure Ben Krasnow could pull it off to some degree of satisfaction. Between his electron microscrope, ion sputtering and mass spectrometer projects,

I'm pretty sure Ben Krasnow could pull it off to some degree of satisfaction. Between his electron microscrope, ion sputtering and mass spectrometer projects, he probably has close to enough of what he needs right now to pull something together. My guess is that he could use his sputtering device or electrochemical deposition to develop a thin film for the target, electron microscope to mill and validate the slits in the film, then either the electron microscope modified or mass spectrometer almost as as-is to actually run the experiment as long as it's OK to bend the electron's path with a magnetic field after the slit and scan the interference pattern across a fixed point sensor. The mass spectrometer seems like it's basically set up to do the atomic interference patterns already (again assuming steering is OK). If you're not allowed to manipulate the path of the electron he'd probably have to come up with a mechanism to detect the interference pattern.