Except it's 10$ and shipped in three days - unless you pay 16$ and get it tomorrow, which is unfortunately not when you need that monitor to work.

Even then, it's most likely even more expensive, because if it's just an off-the-shelf HDMI cable, you'd probably have one around. Look for the cheapest SCSI cable, if you don't think so.

I don't want to say 'store everything', but just backordering stuff is much more expensive in my experience.