This was almost exactly what I was looking for but had two small problems: 1) The hard drives had to be jammed in tightly to fit, I would have preferred a millimetre more buffer, making the walls .5 millimetre thinner which shouldn't impact the strength much. 2) The holes for both my drives were slightly closer together horizontally than the holes on this mount. They were close and could be forced in, but I wasn't happy doing so. Widening the holes toward the inside of the drive half a millimetre should fix this. I've edited a version for myself with the above changes and will be trying that out.