It looks like you grabbed stuff from /dev which I think can’t be moved, it’s created and managed by the kernel

If you did it as root probably broken, if not it should be ok, you might just get programs behaving weirdly.

Exactly the raw material cost is insignificant, what costs is the machining, assembly and quality control.

It fairly fucking obvious what happened, someone was smoking under the bridge when it caught fire and exploded

You have to fill them with both ends of a cable or the bits leak on the floor

Or just use Linux?